Prosecution Insights
Last updated: October 02, 2026

Examiner: WALCZAK, DAVID J

Tech Center 3700 • Art Units: 3751 3754 3761 3772 3781

This examiner grants 74% of resolved cases

Analysis

David J Walczak serves in Tech Center 3700 and Art Unit 3751. The examiner has 1767 resolved cases. The allowance rate is 74.1%, and the interview lift is 17.7%. These figures suggest a favorable and consistent prosecution environment for applicants.

The median days to allowance is 873. This 873-day period is the typical timeframe for reaching an allowance. The 74.1% allowance rate is high, and the 17.7% interview lift indicates that interviews provide a meaningful boost. The 1767 resolved cases represent an exceptionally large data set.

Practitioners can expect a high probability of success given the 74.1% allowance rate. The 17.7% interview lift is a useful tool for resolving any technical issues. The 873 median days to allowance is an efficient benchmark for applicants working in Art Unit 3751.

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

Performance Statistics

74.1%
Allow Rate
+4.1% vs TC avg
1,783
Total Applications
+17.7%
Interview Lift
873
Avg Prosecution Days
Based on 1767 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
25.9%
§102 Novelty
36.1%
§103 Obviousness
32.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19169662 MOTORIZED TOILET SEAT Non-Final OA Kohler Co.
18872332 LIQUID DISPENSER WITH CONTROLLED DISPENSING Non-Final OA Solventum Intellectual Properties Company
19182768 ACTUATOR NOZZLE FOR AEROSOL PACKAGING, AND METHODS OF MAKING AND USING SUCH ACTUATOR NOZZLES AND AEROSOL PACKAGINGS Non-Final OA SOCIETE DES PRODUITS NESTLE S.A.
18996784 ACTUATING PART FOR A STORAGE SUBASSEMBLY OF A FLUID PRODUCT DISPENSER, ASSOCIATED SUBASSEMBLY AND DISPENSER Non-Final OA ALBEA SERVICES
18699472 WRITING INSTRUMENT AND WRITING PART REPLACEMENT UNIT Non-Final OA MITSUBISHI PENCIL COMPANY, LIMITED

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