Prosecution Insights
Last updated: October 27, 2026

William J Cook, USPTO Patent Examiner

Listed by the USPTO as COOK, WILLIAM J

Tech Center 3600 • Art Units: 1784 3611 3618 3634 3658

This examiner grants 86% of resolved cases

Performance Statistics

86.2%
Allow Rate
+34.2% vs TC avg
637
Total Applications
+11.0%
Interview Lift
801
Avg Prosecution Days
Based on 615 resolved cases, 2023–2026

Rejection Statute Breakdown

2.0%
§101 Eligibility
23.6%
§102 Novelty
37.6%
§103 Obviousness
33.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18828425 STRONG, MODULAR, AND PROGRAMMABLE PLATE LATTICES HAVING KIRIGAMI CORRUGATIONS Non-Final OA Massachusetts Institute of Technology
19486423 ROLLER SCREW DRIVE Non-Final OA Schaeffler Technologies AG & Co. KG
19386369 GEAR RING ASSEMBLY Non-Final OA Schaeffler Technologies AG & Co. KG
18784580 COMPACT TRAVERSING SYSTEMS FOR PROBES OR OTHER DEVICES Non-Final OA RTX Corporation
19074725 MEDICAL MANIPULATOR AND MEDICAL MANIPULATOR Non-Final OA OLYMPUS CORPORATION

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Frequently Asked Questions

What is examiner William J Cook's allowance rate?

86.2% of resolved applications examined by William J Cook were allowed (615 resolved cases), compared with 56.5% across Art Unit 1784 over the last five years.

Does an interview help with examiner William J Cook?

This examiner's interview lift is +11.0 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 J Cook take to allow a patent?

Applications allowed by William J Cook took 801 days on average from filing to allowance.

Which art unit does examiner William J Cook work in?

William J Cook examines applications in Art Unit 1784 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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