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Technology domain (CPC subclass)

Domain B28C

573 applicationsExamined mostly in 1774, OPAP, 1731, 1797

3-year grant rate
71%
allowed within 3 years of the first action
Allowance rate
73%
range 69% to 77%
Rejections before allowance
1.5
Months to first action
22.8 mo

In plain words

With B28C, 71% of applications were allowed within three years of the first office action. The first action takes 22.8 months on average.

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 573 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 all domains. 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 all domains.

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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, all domains, 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 all domains.

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What works

Allowance by strategy used

Allowance rate among decided cases where each move was used at least once, against all domains.

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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 all domains.

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Inventors

Who invents most in this domain

Inventor 135 apps
Inventor 230 apps
Inventor 325 apps
Inventor 420 apps
Inventor 515 apps
Inventor 610 apps
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Places

Where it is invented

City 181 apps
City 272 apps
City 363 apps
City 454 apps
City 545 apps
City 636 apps
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Examiners

Who examines B28C

ExaminerCases in B28COverall allowance rateDifficulty
Charles E Cooley12382%Typical for peers
David L Sorkin5471%Typical for peers
Elizabeth Insler4468%Typical for peers
Tony Glen Soohoo4076%Easier than peers
Anshu Bhatia4084%Typical for peers
Docket Central342%Easier than peers
Marc C Howell1870%Typical for peers
Anthony J Green1287%Easier than peers
Robert J Grun1071%Typical for peers
Fazle A Rashid857%Harder than peers
Patrick M McCarty761%Harder than peers
Paul D Marcantoni678%Easier than peers
Armand Melendez449%Typical for peers
James M Sanders474%Easier than peers
Mark Halpern486%Easier than peers
Richard M Camby492%Easier than peers
Michael P Rodriguez474%Easier than peers
Yung-Sheng M Tsui474%Easier than peers
Gautam Prakash354%Typical for peers
Nathan T Leong376%Easier than peers
James E McDonough375%Easier than peers
Wen Ying Patty Chen384%Typical for peers
Adrien J Bernard383%Easier than peers
Douglas A Hess392%Easier than peers
Helen C Kwok382%Typical for peers