LYNCH·LLP
HOME/EXAMINERS/TC 2400/BADRI NARAYANAN CHAMPAKESAN
◈ FIND AN EXAMINER, ART UNIT, OR APPLICATION #
◈ USPTO PATENT EXAMINER STATISTICS

Examiner Badri Narayanan Champakesan

TECH CENTER 2400 · 3 ART UNITS · 586 DECIDED APPLICATIONS · LAST ACTION JUL 2026
ALLOWANCE RATE = SHARE OF DECIDED APPLICATIONS (ALLOWED + ABANDONED); PENDING EXCLUDED
OVERALL ALLOWANCE RATE · POOLED ACROSS 3 ART UNITS
94%vs 72% weighted peer average+22 pts

Examiner Badri Narayanan Champakesan has allowed 550 of 586 decided applications.

550 allowed
Plus 25 applications still pending — not yet decided, so excluded from the rate.
The weighted peer average (72%) is each art unit's average below, weighted by this examiner's applications in it (3 art units).
DATA UPDATED JULY 22, 2026
AU 2496 · 97%AU 2438 · 89%AU 2494 · 98%

What the data says.reading this examiner

Examiner Badri Narayanan Champakesan has a pooled allowance rate of 94% across hundreds of decided applications in Technology Center 2400. The examiner's record spans 3 art units (2438, 2494, 2496). Allowance rates across these art units range from 89% to 98%. This pooled figure represents the share of decided applications (allowed and abandoned combined) in the examiner's public record and reflects past dispositions across the examiner's assigned subject matter.

How to read these numbers.

A pooled record aggregates data across multiple art units, producing a single allowance-rate figure that describes the examiner's historical performance in aggregate. The 94% rate is a backward-looking statistic of decided applications and does not predict outcomes in any particular application. Individual art units may show variation; per-unit rates are available separately and provide narrower subject-matter context.

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 →

The record, art unit by art unit.3 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 2496
233 APPS · 97% ALLOWANCE

Allowance ratewhere this examiner sits among peers

97%
higher than about 85% of the 34 examiners with published rates in art unit 2496
AU avg 67%
0%
100%
Each short mark is one of the 34 examiners with published rates in art unit 2496; the dot is this examiner. The tick is the art-unit average, computed across all 35 examiners in the unit — a broader group than the 34 published marks, so it can sit apart from them.

Disposition233 decided applications

225 allowed
No applications pending.

Pendencymonths from filing

filed
first action 19.5mo
disposed 26.8mo
0
36mo
Art-unit average: first action 21.6 mo, disposed 36.2 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; §102 and §112 carry no art-unit benchmark.

§101 — Subject-matter eligibility
AU 43
63%
§102 — Anticipation (novelty)
no AU benchmark
99%
§103 — Obviousness
AU 91
97%
§112 — Written description & definiteness
no AU benchmark
55%
ART UNIT 2438
228 APPS · 89% ALLOWANCE

Allowance ratewhere this examiner sits among peers

89%
higher than about 93% of the 28 examiners with published rates in art unit 2438
AU avg 75%
0%
100%
Each short mark is one of the 28 examiners with published rates in art unit 2438; the dot is this examiner. The tick is the art-unit average.

Disposition228 decided applications

202 allowed
No applications pending.

Pendencymonths from filing

filed
first action 18.3mo
disposed 28.8mo
0
36mo
Art-unit average: first action 23.7 mo, disposed 38.3 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; §102 and §112 carry no art-unit benchmark.

§101 — Subject-matter eligibility
AU 52
57%
§102 — Anticipation (novelty)
no AU benchmark
83%
§103 — Obviousness
AU 86
94%
§112 — Written description & definiteness
no AU benchmark
86%

Interview benefit

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

without
23%
+73 pts
with
96%

A correlation, not proof that interviews cause allowances. Based on 206 decided applications with an interview and 22 without.

ART UNIT 2494
150 APPS · 98% ALLOWANCE

Allowance ratewhere this examiner sits among peers

98%
higher than about 90% of the 31 examiners with published rates in art unit 2494
AU avg 76%
0%
100%
Each short mark is one of the 31 examiners with published rates in art unit 2494; the dot is this examiner. The tick is the art-unit average, computed across all 32 examiners in the unit — a broader group than the 31 published marks, so it can sit apart from them.

Disposition125 decided applications

123 allowed
Plus 25 applications still pending — not yet decided, so excluded from the rate.

Pendencymonths from filing

filed
first action 14.7mo
disposed 18.8mo
0
24mo
Art-unit average: first action 21.1 mo, disposed 36.3 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; §102 and §112 carry no art-unit benchmark.

§101 — Subject-matter eligibility
AU 37
38%
§102 — Anticipation (novelty)
no AU benchmark
97%
§103 — Obviousness
AU 88
95%
§112 — Written description & definiteness
no AU benchmark
26%
// FAQ

Questions about Examiner Badri Narayanan Champakesan

  • What is Examiner Champakesan's overall allowance rate?
    The examiner's pooled allowance rate is 94% across hundreds of decided applications in Technology Center 2400.
  • How many art units does this examiner cover?
    The examiner's record spans 3 art units (2438, 2494, 2496) within TC 2400.
  • Does the allowance rate vary by art unit?
    Yes. Allowance rates across the examiner's art units range from 89% to 98%. Separate pages provide per-unit breakdowns.
◈ 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.

How the firm prosecutes patentsApplication drafting, office-action responses, and prosecution strategy before the USPTO.Work before the Patent Trial and Appeal BoardAppeals, inter partes review, and patent-owner defense before the PTAB.Planning a patent portfolio over timeHow a patent portfolio is sequenced and built over a multi-year horizon.The firm's consultation optionsFree 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 →
METHODOLOGY & DISCLOSURES

Methodology. This page pools every art unit in which Examiner Badri Narayanan Champakesan has a public record within Technology Center 2400. Statistics are computed from publicly available USPTO records, refreshed on a recurring schedule. This page's data was last updated July 22, 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: 611 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.

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. Full disclaimers →

ATTORNEY ADVERTISING — Sean Lynch, Partner, Lynch LLP