LYNCH·LLP
HOME/EXAMINERS/TC 2600/KIM THANH THI TRAN
◈ FIND AN EXAMINER, ART UNIT, OR APPLICATION #
◈ USPTO PATENT EXAMINER STATISTICS

Examiner Kim Thanh Thi Tran

TECH CENTER 2600 · 6 ART UNITS · 418 DECIDED APPLICATIONS · LAST ACTION JUL 2026
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 6 ART UNITS
79%vs 65% weighted peer average+14 pts

Examiner Kim Thanh Thi Tran has allowed 330 of 418 decided applications in Communications.

330 allowed
88 abandoned
Plus 22 applications still pending — not yet decided, so excluded from the rate.
The weighted peer average (65%) is each art unit's average below, weighted by this examiner's applications in it (6 art units).
DATA UPDATED AUGUST 27, 2026
AU 2612 · 77%AU 2615 · 93%AU 2616 · 80%AU 2677 · 60%AU 2628 · 38%AU 2678 · 0%
◈ PATENT PROSECUTION

Lynch LLP represents applicants in patent prosecution before the USPTO.

Talk to the attorney who would handle the matter.

Book a 30-minute consultation →

Outcomes over timemonths since first office action

grantedpendingabandoned
granted 71%abandoned 22%0%50%100%048mo36momonths since first office action
↳ move your cursor across the chart to read any month

Within 36 months of the first office action, 70.98% of Examiner Kim Thanh Thi Tran's applications had been granted and 22.41% had been abandoned. This counts each application from its own first office action, so it covers a different population than the overall allowance rate above, which is measured across decided applications only.

Office actions per allowanceexaminer ● vs weighted peer average ○

Mailed office actions per allowed application
1.61
2.15

Counts mailed office actions on the merits — non-final and final — over this examiner's 330 allowed applications. A first-action allowance counts as zero, and a notice of allowance is not an office action.

The weighted peer average (1.61) blends the per-art-unit averages, weighted by this examiner's allowed applications in each: 2612 (1.56), 2615 (1.70), 2616 (1.59), 2677 (1.81), 2628 (1.98). Art units are not included here if this measure has no published average, or if this examiner has no allowed applications there to weight it by. Each art-unit figure is the unweighted mean of the individual examiner values in that art unit — the peer-typical figure, not the art unit's own ratio.

What the data says.reading this examiner

Kim Thanh Thi Tran maintains a public record across 6 art units in Technology Center 2600 (Communications). Across hundreds of decided applications pooled from these art units, the overall allowance rate is 79%. This aggregate figure reflects all allowed and abandoned applications within the examiner's record. The allowance rate ranges from 77% to 93% across the individual art units, showing variation in outcomes by subject-matter area within TC 2600. This pooled record represents the examiner's historical disposition of applications across the full breadth of their assigned technology center.

Reading a pooled record.

A pooled record aggregates data from multiple art units into a single overall statistic. The 79% allowance rate describes past outcomes across all decided applications in this examiner's record and is not a prediction of any specific application's outcome. Variation across individual art units reflects differences in subject matter and claim complexity within the technology center. Pooled figures are most useful as a general reference to the examiner's historical record rather than as indicators of what any single application will receive.

These are aggregate statistics from this examiner's past public record — not predictions about any specific application. The per-art-unit figures below show how the record varies across art units. Our approach to patent prosecution →

Appeals, stage by stagepre-appeal conference, then the Board

STAGE 1 · CONFERENCE121013REQUESTSn = 13counts only
10 of 13 proceed
+ 6 never asked
STAGE 2 · APPEAL7225219APPEALSn = 19counts only
STAGE 1 · CONFERENCE OUTCOME · n = 13
  1. Proceeded to appeal10
  2. Prosecution reopened2
  3. Allowed at conference1
STAGE 2 · APPEAL OUTCOME · n = 19
  1. Allowed7
  2. Affirmed5
  3. Reversed2
  4. Affirmed in part2
  5. Abandoned2
  6. Pending1

Appeal outcomes are counted from USPTO transaction records. Where an examiner has few appeals on record, these figures describe what happened in those cases and should not be read as a rate.

Rates are not shown below 20 cases, because a single case would move the figure by more than five percentage points.

Categories report what happened to the appeal, not the application's final fate — most appeals resolve without a Board decision, and an application whose rejection the Board affirmed can still be granted afterward.

HOW TO READ THESE NUMBERS

Past outcomes, not predictions — identity, attribution, and coverage limits on every figure on this page. Expand for the full list.

These figures describe outcomes already on the public record. They do not predict the outcome of any application and are not legal advice.

Reassigned applications. The USPTO publishes only the examiner currently assigned to an application. Where an application has changed examiners, its entire history — including office actions issued by a predecessor — is attributed here to the current examiner.

Examiner identity. The USPTO publishes no stable examiner identifier. Identity on this site is derived from the examiner's published name together with the art unit. An examiner's record is pooled across the art units they worked in within a technology center. An examiner who has worked in more than one technology center appears here more than once, with their record split between those pages. Two examiners who share a name within a single art unit may be combined into one record.

Comparing across technology centers. Rejection-ground rates (§101, §102, §103, §112) track the subject matter a technology center examines, not examiner severity. Technology Center 2600's rates are comparable with other art units inside TC 2600 and are not comparable with rates from a different technology center.

Comparing examiners. An examiner's rates are shown here against the average for their art unit, which is the closest available comparison because art units group related subject matter. Comparisons get less reliable the further you move from that — between art units, and especially between technology centers, differences in subject matter, applicant population, and prior art make raw rate comparisons misleading. Where an examiner has few applications on record, small changes in the underlying data move the percentages a great deal.

Applications not counted. An application whose currently assigned examiner has moved to a USPTO business unit outside the examining technology centers is absent from this record, together with every office action on it — even where those actions issued while the application sat in an art unit shown here.

Coverage is incomplete. This site does not include every patent application. Applications that may not appear here include those examined in technology centers not listed on this site; those that moved elsewhere within the Office, such as to the Patent Trial and Appeal Board on appeal, to central reexamination, to the Office of Petitions, or to design or plant examination; those never published, including applications filed with a nonpublication request and those abandoned before publication; provisional applications, which are not examined on the merits; anything filed or acted on after the refresh date above; and individual applications or office actions that the USPTO's public services did not return when we retrieved them. That list is illustrative, not exhaustive.

Counts may be low. The individual outcomes described here are matters of public record. The counts and rates computed from them are ours, and they are incomplete. Because of those gaps a count here may be lower than the true figure. We cannot state the size of the difference, and it is not uniform — one examiner's page may be close to complete while another's is materially short. Rates are computed from these same counts, so the uncertainty sits in both the numerator and the denominator. Do not treat a figure here as a count of record; verify against Patent Center, PatentsView, or the Patent Examination Data System before relying on it.

An absent figure. Where a figure is absent, we did not retrieve the underlying records. It does not mean the value is zero, and it does not mean the USPTO holds no such records.

Rejection-ground retrieval. Office-action rejection records are retrieved from the USPTO's office-action dataset in date-bounded batches sized so that each is returned whole in a single response. Retrieved this way, repeated pulls return the same set of records — the retrieval is reproducible. That is a property of our retrieval, not a guarantee that the USPTO dataset itself is complete; the coverage caveats above apply to these figures as to every other.

Compiled from USPTO records as published on August 27, 2026. Prosecution continues after that date and is not reflected here.

The record, art unit by art unit.6 art units

Each section benchmarks this examiner against that art unit's average. Figures are this examiner's own public record within the art unit; the overall rate above pools them.

◈ PRIMARY · ART UNIT 2612
250 APPS · 77% ALLOWANCE

Allowance ratewhere this examiner sits among peers

77%
higher than about 70% of the 154 examiners with published rates in art unit 2612
AU avg 61%
0%
100%
Each short mark is one of the 154 examiners with published rates in art unit 2612; the dot is this examiner. The tick is the art-unit average, computed across all 156 examiners in the unit — a broader group than the 154 published marks, so it can sit apart from them.

Disposition250 decided applications

193 allowed
57 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 17.5mo
disposed 35.9mo
0
36mo
Art-unit average: first action 25.8 mo, disposed 37.8 mo.

Rejection groundsexaminer ● vs art-unit average ○

REJECTION RATE = SHARE OF THIS EXAMINER'S APPLICATIONS THAT DREW ≥1 OFFICE-ACTION REJECTION IN WHICH THE GROUND APPEARS

Grounds can co-occur, so the four don't sum to 100%. The art-unit figure is the unweighted mean across examiners in the art unit; where an art unit has no computed average for a ground, that row says so rather than showing a comparison.

§101 — Subject-matter eligibility
17%
47%
§102 — Anticipation (novelty)
52%
65%
§103 — Obviousness
86%
97%
§112 — Written description & definiteness
42%
39%

Interview benefit

Allowance rate for applications with an examiner interview versus without one.

without
64%
+26 pts
with
90%

A correlation, not proof that interviews cause allowances. Based on 128 decided applications with an interview and 122 without.

ART UNIT 2615
102 APPS · 93% ALLOWANCE

Allowance ratewhere this examiner sits among peers

93%
higher than about 76% of the 114 examiners with published rates in art unit 2615
AU avg 73%
0%
100%
Each short mark is one of the 114 examiners with published rates in art unit 2615; the dot is this examiner. The tick is the art-unit average.

Disposition80 decided applications

74 allowed
Plus 22 applications still pending — not yet decided, so excluded from the rate.

Pendencymonths from filing

filed
first action 20.7mo
disposed 32.3mo
0
36mo
Art-unit average: first action 25 mo, disposed 39.4 mo.

Rejection groundsexaminer ● vs art-unit average ○

REJECTION RATE = SHARE OF THIS EXAMINER'S APPLICATIONS THAT DREW ≥1 OFFICE-ACTION REJECTION IN WHICH THE GROUND APPEARS

Grounds can co-occur, so the four don't sum to 100%. The art-unit figure is the unweighted mean across examiners in the art unit; where an art unit has no computed average for a ground, that row says so rather than showing a comparison.

§101 — Subject-matter eligibility
35%
28%
§102 — Anticipation (novelty)
72%
44%
§103 — Obviousness
82%
90%
§112 — Written description & definiteness
56%
29%

Interview benefit

Allowance rate for applications with an examiner interview versus without one.

without
89%
+11 pts
with
100%

A correlation, not proof that interviews cause allowances. Based on 27 decided applications with an interview and 53 without.

ART UNIT 2616
64 APPS · 80% ALLOWANCE

Allowance ratewhere this examiner sits among peers

80%
higher than about 63% of the 215 examiners with published rates in art unit 2616
AU avg 67%
0%
100%
Each short mark is one of the 215 examiners with published rates in art unit 2616; the dot is this examiner. The tick is the art-unit average.

Disposition64 decided applications

51 allowed
13 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 16.7mo
disposed 29.4mo
0
36mo
Art-unit average: first action 38 mo, disposed 50.3 mo.

Rejection groundsexaminer ● vs art-unit average ○

REJECTION RATE = SHARE OF THIS EXAMINER'S APPLICATIONS THAT DREW ≥1 OFFICE-ACTION REJECTION IN WHICH THE GROUND APPEARS

Grounds can co-occur, so the four don't sum to 100%. The art-unit figure is the unweighted mean across examiners in the art unit; where an art unit has no computed average for a ground, that row says so rather than showing a comparison.

§101 — Subject-matter eligibility
27%
19%
§102 — Anticipation (novelty)
63%
51%
§103 — Obviousness
84%
94%
§112 — Written description & definiteness
39%
30%

Interview benefit

Allowance rate for applications with an examiner interview versus without one.

without
74%
+14 pts
with
88%

A correlation, not proof that interviews cause allowances. Based on 25 decided applications with an interview and 39 without.

ART UNIT 2677
15 APPS · 60% ALLOWANCE · LIMITED DATA

Allowance ratewhere this examiner sits among peers

60%
higher than about 24% of the 85 examiners with published rates in art unit 2677
AU avg 70%
0%
100%
Each short mark is one of the 85 examiners with published rates in art unit 2677; the dot is this examiner. The tick is the art-unit average.

Disposition15 decided applications

9 allowed
6 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 29.3mo
disposed 43.6mo
0
48mo
Art-unit average: first action 22.9 mo, disposed 36.8 mo.

Rejection groundsexaminer ● vs art-unit average ○

REJECTION RATE = SHARE OF THIS EXAMINER'S APPLICATIONS THAT DREW ≥1 OFFICE-ACTION REJECTION IN WHICH THE GROUND APPEARS

Grounds can co-occur, so the four don't sum to 100%. The art-unit figure is the unweighted mean across examiners in the art unit; where an art unit has no computed average for a ground, that row says so rather than showing a comparison.

§101 — Subject-matter eligibility
40%
40%
§102 — Anticipation (novelty)
59%
47%
§103 — Obviousness
83%
93%
§112 — Written description & definiteness
44%
27%

Based on 15 applications — too small a sample to characterize the rejection mix reliably; shown for completeness.

ART UNIT 2628
8 APPS · 38% ALLOWANCE · LIMITED DATA

Allowance ratewhere this examiner sits among peers

38%
higher than about 14% of the 111 examiners with published rates in art unit 2628
AU avg 64%
0%
100%
Each short mark is one of the 111 examiners with published rates in art unit 2628; the dot is this examiner. The tick is the art-unit average.

Disposition8 decided applications

3 allowed
5 abandoned
No applications pending.

Pendencymonths from filing

filed
first action 33mo
disposed 42.7mo
0
48mo
Art-unit average: first action 25.4 mo, disposed 40.6 mo.

Rejection groundsexaminer ● vs art-unit average ○

REJECTION RATE = SHARE OF THIS EXAMINER'S APPLICATIONS THAT DREW ≥1 OFFICE-ACTION REJECTION IN WHICH THE GROUND APPEARS

Grounds can co-occur, so the four don't sum to 100%. The art-unit figure is the unweighted mean across examiners in the art unit; where an art unit has no computed average for a ground, that row says so rather than showing a comparison.

§101 — Subject-matter eligibility
41%
38%
§102 — Anticipation (novelty)
55%
50%
§103 — Obviousness
79%
100%
§112 — Written description & definiteness
36%
25%

Based on 8 applications — too small a sample to characterize the rejection mix reliably; shown for completeness.

ART UNIT 2678
1 APPS · 0% ALLOWANCE · LIMITED DATA

Allowance ratewhere this examiner sits among peers

0%
higher than about 0% of the 23 examiners with published rates in art unit 2678
AU avg 59%
0%
100%
Each short mark is one of the 23 examiners with published rates in art unit 2678; the dot is this examiner. The tick is the art-unit average.

Disposition1 decided applications

1 abandoned
No applications pending.

Pendencymonths from filing

filed
disposed 43.6mo
0
48mo
Art-unit average: first action 28.6 mo, disposed 41.9 mo.

Rejection grounds

No rejection records for this examiner were retrieved from the USPTO office-action dataset. This is an absence of retrieved data, not a rate of zero.

// FAQ

Questions about Examiner Kim Thanh Thi Tran

  • What is Kim Thanh Thi Tran's overall allowance rate?
    79% across hundreds of decided applications pooled from all assigned art units. This represents the share of applications that were allowed or abandoned among all decided applications.
  • How many art units does this examiner work in?
    Six art units: 2612, 2615, 2616, 2628, 2677, and 2678, all within Technology Center 2600 (Communications).
  • Does the allowance rate vary by art unit?
    Yes. The allowance rate ranges from 77% to 93% across the individual art units. The 79% pooled figure is an aggregate across all six units.
◈ HOW LYNCH LLP CAN HELP

Where to go next.

Lynch LLP represents applicants in patent prosecution before the USPTO. These are general resources about the firm's services — not advice about this examiner or any specific application.

Drafting and prosecuting patent applicationsApplication drafting, office-action responses, and prosecution strategy before the USPTO.PTAB trials and patent appealsAppeals, inter partes review, and patent-owner defense before the PTAB.Building a patent portfolioHow a patent portfolio is sequenced and built over a multi-year horizon.Booking a consultationFree and paid consultation options across the firm's attorneys.
◈ RESPONDING TO AN OFFICE ACTION

Strategy, not paperwork. Talk to the attorney doing the work.

Lynch LLP represents applicants in patent prosecution before the USPTO. Book a consultation to discuss your matter with the attorney who would handle it.

Book a 30-minute consultation →Send your details instead →
METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Kim Thanh Thi Tran has a public record within Technology Center 2600. Statistics are computed from publicly available USPTO records, refreshed on a recurring schedule. This page's data was last updated August 27, 2026. The overall allowance rate is total allowed divided by total decided applications (allowed plus abandoned) across all art units — not an average of the per-art-unit rates; pending applications are excluded. Figures are rounded for display. Pooled sample: 440 applications.

Rejection rates. Each §-rate is the share of this examiner's applications that drew at least one office-action rejection in which that statutory ground appears; applications with no rejection on record are excluded, and because grounds can co-occur the four do not sum to 100%. The art-unit figure beside each is the unweighted mean of the per-examiner rates across the art unit, published for §101 and §103 only. Beside the overall allowance rate we show a benchmark: for a single-art-unit examiner it is exactly that art unit's average, labeled “art-unit average”; for an examiner spanning several art units it is the “weighted peer average” — the per-art-unit averages, weighted by this examiner's application count in each — labeled distinctly because it is a blended figure, not any single art unit's average. Both are built from the same per-art-unit averages the panels show.

Office actions per allowance. Mailed office actions on the merits — non-final and final — averaged over this examiner's allowed applications. A first-action allowance counts as zero and is included; a notice of allowance is not an office action. The comparison figure is built the same way as the allowance-rate benchmark — from each art unit's own average for this measure — weighted here by this examiner's allowed applications in each art unit, since that is this measure's own denominator. Each art unit's figure is the unweighted mean of its examiners' individual values, so it is the peer-typical figure rather than the art unit's own ratio.

Lynch LLP is not affiliated with, endorsed by, or sponsored by the United States Patent and Trademark Office. Examiner statistics are derived from publicly available USPTO data.

These statistics describe past examiner behavior and do not predict the outcome of any particular application. Past results do not guarantee future outcomes. Where this page compares an examiner's allowance rate to an art-unit average, that comparison is a factual description of the public record, not a characterization of any individual examiner's conduct or competence.

This page is for general informational purposes and is not legal advice. No attorney-client relationship is formed by viewing it. Consult a registered patent practitioner about your own matter. These figures are reproduced and recombined by Lynch LLP from the USPTO's Patent File Wrapper bulk archive and Open Data Portal APIs; they are not an official USPTO publication, and the USPTO has not reviewed, endorsed, or verified them. If a page here is wrong, tell us at lynchllp.com/contact and we will correct or remove it. Full disclaimers →

ATTORNEY ADVERTISING — Sean Lynch, Partner, Lynch LLP