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Patent examiner

David S Warren

ActiveArt unit 2837Tech center 2800981 applicationsTypical for peers

Art unit2837 76 examiners
Tech center2800
Active in the record2007 to 2026, 19 years
Applications examined981 834 allowed, 147 abandoned, 0 pending
Main domainsG10H, B66B, G06F
DifficultyP38 in the tech center, P35 of all examiners
3-year grant rate
85%
+2 pts vs art unit 2837 allowed within 3 years of the first action
Allowance rate
85%
level with art unit 2837 range 83% to 87%
Rejections before allowance
1.0
−0.1 vs art unit 2837
Months to first action
14.4 mo
−5.7 vs art unit 2837

In plain words

With David S Warren, 85% of applications were allowed within three years of the first office action, against 83% for art unit 2837. David S Warren is typical of the art unit, in the 35th percentile of all examiners by difficulty (the 100th is the hardest). The first action takes 14.4 months on average.

Easier35th percentileHarder
Difficulty percentile across all examiners

Examiner difficulty

How hard is this examiner?

Every examiner with enough decided cases, from the hardest to the easiest; the dashed line is this examiner. Switch the comparison set or the measure, and click a bar to see who is in it: the examiners you might have drawn instead.

Timeline

Applications by filing year: drag across the years to study a period

Allowed in green, abandoned in red, pending in grey. The figures above and every chart that can be recomputed by filing year follow the span you pick; the rest are marked all years.

Ask the record

Questions practitioners ask, answered from 981 applications

Grant rate from the first action

Share allowed, by months after the first office action

The gold line is this record and the blue line is art unit 2837. The marker is the three-year grant rate.

Outcome simulator

Where you are, what you do next, and the odds that follow

A model of this record’s own transitions: each examiner action, the response to it, and what came next. Thin data borrows from art unit 2837.

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Prosecution paths

How prosecution actually unfolds

Every application’s sequence of examiner actions, from the first action to the outcome. Hover a band for the count.

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Compared with peers

Against the art unit, the tech center and the USPTO

The same figures for this record, art unit 2837, the tech center and the whole office.

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Allowance over time

How fast applications are allowed, or abandoned

Share allowed (gold) and abandoned (red) by month since filing, with pending cases counted only while they are pending.

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Rejection fingerprint

What gets rejected, by statute

Share of office actions raising each ground; blue is art unit 2837.

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After a response

Which grounds this examiner withdraws

How often each ground is gone from the next action once you have responded to it.

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What works

Allowance by strategy used

Allowance rate among decided cases where each move was used at least once, against art unit 2837.

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Interviews

Does an interview help?

Allowance with and without an examiner interview, and how often interviews happen.

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Odds by round

Chance the next action is an allowance

After the first, second and later rejections.

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Response clock

Days from a response to the next action

How long the examiner takes to act once you have answered.

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Quarter-end timing

When allowances land in the fiscal quarter

Allowances by week of the USPTO fiscal quarter. An even spread would put 15% in the last two weeks.

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Appeals

What happens on appeal

Appeals filed, briefs, examiner’s answers, and how the Board decided.

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Trend

Allowance rate by filing year

Is it getting easier or harder? Gold is this record, blue is art unit 2837.

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Who files here

Assignees and firms with the most applications

How often each one was allowed with this examiner.

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Cited art

References this examiner relies on most

From the rejections and the examiner’s citation forms.

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Landscape

Where David S Warren sits in tech center 2800

Each dot is an examiner: allowance rate across, rejections before allowance down, size by caseload. Click one to open it.

Applications

Every application examined

ApplicationTitleFiledStatusRejectionsRCEsTo 1st action
16989748SYNTHESIZED PERCUSSION PEDAL AND LOOPING STATION2020-08-10Allowed101.1 mo
16920439INSTRUMENT PEDAL DEVICE AND OPERATION METHOD OF INSTRUMENT PEDAL DEVICE2020-07-03Allowed101.4 mo
16872315Foldable Piano Keyboard2020-05-11Allowed105.9 mo
15729050Method and apparatus for adaptive signal processing2012-01-10Allowed1012.0 mo
15377689Composition and method for controlled release2015-02-11Abandoned4123.0 mo
15151371Distributed ledger transaction verification2018-03-12Allowed3020.0 mo
15134745Thermal management of battery assemblies2021-04-13Pending2117.0 mo
15792881Machine learning model for anomaly detection2012-05-14Allowed1014.0 mo
15753831Wireless power transfer coil arrangement2015-06-15Abandoned4125.0 mo
15584191Catalyst for selective hydrogenation2018-07-16Allowed3022.0 mo
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