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Patent Examiner Mamadou Faye

Art Unit 2884 · Radiant Energy & X-Ray / Gamma-Ray Systems & Devices · Tech Center 2800 · 435 applications since 2021

✓ Average: easier than 67% of examiners● Free examiner data

Mamadou Faye is a USPTO patent examiner in Art Unit 2884 (Radiant Energy & X-Ray / Gamma-Ray Systems & Devices) who has examined 435 applications in filing years 2021–2024. Examiner Faye's allowance rate is 86.3%, above the 82.1% USPTO average; the examiner ranks easier than 67% of examiners.

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Data through March 2026 · Source: USPTO Patent Center (formerly PAIR) · Methodology

Overview

Free
Difficulty: Average
easier than 67% of examiners
Easier33rd percentileHarder
Allowance rate vs peers
Examiner Faye86.3%
Art Unit 288493.7%
USPTO average82.1%
Allowance rate
86.3%
▲ USPTO avg 82.1%
Applications
435
filing years 2021–2024
First-action allowance
15.5%
allowed on OA #1
Abandoned
10.3%
share of applications
Avg office actions
1.3
USPTO avg 1.2
Days to first OA
552
▼ USPTO 589
RCE rate
14.9%
USPTO 14.1%
Interview rate
21.1%
USPTO 21.5%

Examiner details

  • Art unit2884 · Radiant Energy & X-Ray / Gamma-Ray Systems & Devices
  • Title / gradePatent Examiner · GS-13
  • Service12 years
  • Phone(571) 270-0371
  • Email[email protected]
  • LocationAlexandria, VA 22314
  • On office actionsFaye, Mamadou
Partial signatory authority

Examiner Faye can sign some office actions directly, while allowances and final actions are reviewed by a more senior examiner, so clear written arguments carry extra weight.

Examines (USPC classes)
378 · X-Ray or Gamma-Ray Systems or Devices250 · Radiant Energy435 · Chemistry: Molecular Biology & Microbiology

How to improve your odds with Examiner Faye

  • Interview results are mixed year to year. The largest measured lift was 21.7 points in 2021, but at least one year ran the other way; weigh the year-by-year table below.
  • The timeline runs ahead of the norm. First office action averages 552 days vs the 589-day USPTO norm.
  • Expect a §103. Obviousness is the most-issued rejection (371), and applicants overcame it 74.8% of the time.
  • RCE outcomes are mixed year to year. 8.1 points up in 2023 but -14.3 in 2021; weigh the year-by-year table before spending the fee.
  • This docket has supported broader claims. With a 86.3% allowance rate, preserving breadth where the specification supports it has been viable.

Historical patterns from this examiner's past cases, shown for general information. This is not legal advice and does not predict the outcome of any specific application. Decisions about interviews, RCEs, and claim strategy should be made with a licensed patent attorney or agent.

Rejection patterns & how they get overcome

Free
§101 Eligibility1 issued · 100.0% overcome
§102 Novelty96 issued · 89.0% overcome
§103 Obviousness371 issued · 74.8% overcome
§112 Disclosure132 issued · 81.9% overcome
Arguments that overcame §103 rejections🔒 Members

REMARKS: Applicant respectfully traverses the rejection under 35 U.S.C. §103. The cited references, whether taken alone or in combination, fail to teach or suggest at least the recited limitation, and the Office has not established an adequate rationale to combine the references as proposed without impermissible hindsight in that ...

Read every winning §103 argumentFull REMARKS, amendments, claim trees & redlines from the file wrappers
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RCE behavior

Allowance after a Request for Continued Examination versus without one, per year. Use it to judge whether an RCE is worth the cost in front of Examiner Faye.

YearRCE rateAllowance w/ RCEAllowance w/oDelta
202316.2%100.0%91.9%+8.1pp
202215.3%92.3%84.6%+7.7pp
202118.8%70.8%85.1%-14.3pp

Recent outcomes

Free🔒 Case detail: members
App #TitleOutcomeOAsArguments & redline
18/583695Adjustable Radiation Detector SupportPatented0🔒 View
18/475717Devices and Methods for Adaptively Controlling a Radiotherapy ApparatusPatented1🔒 View
18/323727Development of a Photobleaching Device and Uses ThereofPatented1🔒 View
18/454813Ultraviolet Inspection Tool, Ultraviolet Inspection Kit, and Ultraviolet Inspection MethodPatented1🔒 View
See all 435 dispositions with full file-wrapper detailOffice action text, attorney arguments, amendments & claim-by-claim track changes
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Technology & expertise

X-ray systemsRadiant energy detectionRadiation imagingGamma-ray devicesTop CPC: G01N · A61B · H05G
About this examiner. Mamadou Faye has examined 435 applications in Art Unit 2884 (Radiant Energy & X-Ray / Gamma-Ray Systems & Devices, Tech Center 2800). The docket skews toward x-ray systems, radiant energy detection, radiation imaging.

Frequently asked questions

What is Examiner Mamadou Faye's allowance rate?
Examiner Faye's allowance rate is 86.3%, compared with the 82.1% USPTO average and 93.7% for Art Unit 2884, which places Examiner Faye easier than 67% of examiners.
Is Examiner Faye a hard examiner?
Examiner Faye is about average — Examiner Faye ranks easier than 67% of examiners, in the 33rd difficulty percentile (average), with more office actions per application than average (1.3 versus 1.2) and a higher RCE rate (14.9% versus 14.1%).
Do examiner interviews help with Examiner Faye?
The data says yes. Interviewed applications allowed 21.7 percentage points higher than non-interviewed ones in 2021 (100.0% versus 78.3%).
What is Examiner Faye's most common rejection?
§103 obviousness, issued 371 times in the data. Applicants overcame it 74.8% of the time, usually by amendment plus argument.
Is an RCE worth filing with Examiner Faye?
It has varied by year, so the table is the better guide. In 2023, applications with an RCE allowed at 100.0% versus 91.9% without one, but earlier years did not all run that way.
How long until the first office action from Examiner Faye?
About 552 days on average, versus the 589-day USPTO norm.
How do I contact Examiner Mamadou Faye?
Examiner Faye can be reached by phone at (571) 270-0371 or by email at [email protected]. The examiner's direct line also appears on the first page of every office action.

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Statistics are computed by Boundly Prosecution Intel from USPTO Patent Center (formerly PAIR) file wrappers for filing years 2021–2024, updated monthly. Allowance rate (sometimes called grant rate) is the share of disposed applications that issued as patents. Historical data is provided for informational purposes only; past examiner behavior does not guarantee future outcomes, and nothing here is legal advice or a substitute for advice from a licensed patent attorney or agent. Are you Mamadou Faye, or see an error? Request a correction.