Prosecution Insights
Last updated: October 27, 2026

William H Beisner, USPTO Patent Examiner

Listed by the USPTO as BEISNER, WILLIAM H

Tech Center 3700 • Art Units: 1633 1699 1775 1795 1796 1797 1798 1799 3762

This examiner grants 62% of resolved cases

Analysis

BEISNER, William H has resolved 972 cases in Tech Center 3700, with a 61.9% allowance rate. The 29.0% interview lift indicates that interviews may materially improve outcomes and deserve deliberate preparation. The median time to allowance is 1293 days, so applicants should anticipate a prolonged prosecution cycle and preserve flexibility in claim strategy.

Terumo Corporation, City University of Hong Kong, and The University of Chicago are the leading companies. Botos Churchill IP Law LLP, COATS & BENNETT, PLLC, and CYTIVA - Grogan, Tuccillo & Vanderleeden, LLP are the leading firms. In art unit 1633, counsel should connect interview discussions directly to written claim positions.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

61.9%
Allow Rate
-8.1% vs TC avg
1,000
Total Applications
+29.0%
Interview Lift
1293
Avg Prosecution Days
Based on 972 resolved cases, 2023–2026

Rejection Statute Breakdown

1.6%
§101 Eligibility
19.1%
§102 Novelty
42.7%
§103 Obviousness
26.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18401976 Cell Culturing Device and Cell Culturing System Non-Final OA Terumo BCT, Inc.
18490124 VISUAL DETERMINATION OF PRESENCE AND/OR QUANTIFICATION OF ONE OR MORE SPECIES IN A SAMPLE SOLUTION Final Rejection City University of Hong Kong
18574249 SYSTEM AND METHOD FOR ISOLATING, STORING AND USING CELLS Non-Final OA THE MEDICAL RESEARCH, INFRASTRUCTURE, AND HEALTH SERVICES FUND OF THE TEL AVIV MEDICAL CENTER

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner William H Beisner's allowance rate?

61.9% of resolved applications examined by William H Beisner were allowed (972 resolved cases), compared with 34.8% across Art Unit 1633 over the last five years.

Does an interview help with examiner William H Beisner?

This examiner's interview lift is +29.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner William H Beisner take to allow a patent?

Applications allowed by William H Beisner took 1,293 days on average from filing to allowance.

Which art unit does examiner William H Beisner work in?

William H Beisner examines applications in Art Unit 1633 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month