Prosecution Insights
Last updated: October 27, 2026

Colin W Slifka, USPTO Patent Examiner

Listed by the USPTO as SLIFKA, COLIN W

Tech Center 1700 • Art Units: 1732 1793

This examiner grants 67% of resolved cases

Analysis

SLIFKA, COLIN W is assigned to Tech Center 1700 and art unit 1732. The profile reports 904 resolved cases and an allowance rate of 67.4%. The interview lift is 16.1%, below the allowance rate, so the overall allowance experience is the stronger historical signal. The median time to allowance is 1210 days, making response timing and continuation decisions important parts of prosecution management.

The listed companies are Panasonic Holdings Corporation, LG Energy Solution Ltd., and Techtronic Power Tools Technology Limited. The listed firms are Armis Intellectual Property Law, LLC, BAKER BOTTS L.L.P., and JCIPRNET. Counsel can use the substantial resolved-case history to frame claim strategy, while applying interviews selectively to clarify technical distinctions or narrow disputed limitations.

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

Performance Statistics

67.4%
Allow Rate
+2.4% vs TC avg
921
Total Applications
+16.1%
Interview Lift
1210
Avg Prosecution Days
Based on 904 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
11.5%
§102 Novelty
54.2%
§103 Obviousness
25.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18551536 BATTERY INCLUDING FOLDED FOIL PORTION AND METHOD OF FABRICATING SAME Non-Final OA TECHTRONIC CORDLESS GP
18569899 SEALED BATTERY Non-Final OA Panasonic Energy Co., Ltd.
18565353 Electrode Assembly and Battery Cell Including Same Non-Final OA LG Energy Solution, Ltd.
18566665 ENERGY STORAGE APPARATUS Non-Final OA GS Yuasa International Ltd.

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Frequently Asked Questions

What is examiner Colin W Slifka's allowance rate?

67.4% of resolved applications examined by Colin W Slifka were allowed (904 resolved cases), compared with 53.6% across Art Unit 1732 over the last five years.

Does an interview help with examiner Colin W Slifka?

This examiner's interview lift is +16.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Colin W Slifka take to allow a patent?

Applications allowed by Colin W Slifka took 1,210 days on average from filing to allowance.

Which art unit does examiner Colin W Slifka work in?

Colin W Slifka examines applications in Art Unit 1732 in Tech Center 1700 (Chemistry & Materials).

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