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Technology domain (CPC subclass)

Domain A21B

828 applicationsExamined mostly in 3742, 3761, 3762, 1792

3-year grant rate
54%
allowed within 3 years of the first action
Allowance rate
58%
range 55% to 62%
Rejections before allowance
1.9
Months to first action
22.9 mo

In plain words

With A21B, 54% of applications were allowed within three years of the first office action. The first action takes 22.9 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 828 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 A21B

ExaminerCases in A21BOverall allowance rateDifficulty
Reginald Alexander3579%Easier than peers
Drew E Becker2849%Typical for peers
Docket Central282%Easier than peers
Joseph Moore Pelham2576%Easier than peers
Avinash A Savani2478%Easier than peers
Jorge Andres Pereiro2268%Easier than peers
Thien S Tran1972%Typical for peers
Eric S Stapleton1856%Typical for peers
Shawntina T Fuqua1879%Easier than peers
Michael A Laflame Jr1776%Easier than peers
Steven N Leff1342%Typical for peers
Thomas John Ward1252%Harder than peers
Brian W Jennison1275%Easier than peers
Vivek K Shirsat1176%Typical for peers
Kuangyue Chen1165%Typical for peers
Ket D Dang1064%Typical for peers
James M Sanders974%Easier than peers
John J Norton969%Typical for peers
Preston Smith933%Typical for peers
Daniel Elliot Namay971%Easier than peers
Dimple D Sopariwala947%Harder than peers
Joseph W Iskra873%Typical for peers
Emmanuel S Luk875%Typical for peers
John S. Wasaff736%Harder than peers
James P Mackey784%Easier than peers