Prosecution Insights
Last updated: October 26, 2026

Donald R Spamer, USPTO Patent Examiner

Listed by the USPTO as SPAMER, DONALD R

Tech Center 1700 • Art Units: 1758 1775 1799

This examiner grants 59% of resolved cases

Analysis

SPAMER, DONALD R is assigned to tech center 1700 and art unit 1758. The profile shows 576 resolved cases, with an allowance rate of 59.4% and a median of 1025 days to allowance. The case history is substantial, while the allowance rate indicates a record with a relatively balanced mix of prosecution outcomes.

The interview lift is 32.3%, making interviews a meaningful strategic consideration. Samsung Electronics Co., Ltd., Toyoda Gosei Co., Ltd., and ABB Schweiz AG are the principal companies listed. The leading firms are BANNER & WITCOFF, LTD., Dickinson Wright PLLC - Washington DC, and ABB - Whitmyer IP Group LLC. Practitioners should account for both dialogue and substantive claim refinement.

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

Performance Statistics

59.4%
Allow Rate
-5.6% vs TC avg
618
Total Applications
+32.3%
Interview Lift
1025
Avg Prosecution Days
Based on 576 resolved cases, 2023–2026

Rejection Statute Breakdown

1.7%
§101 Eligibility
10.6%
§102 Novelty
52.7%
§103 Obviousness
29.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18930383 APPARATUS FOR STERILIZATION AND DEODORIZATION AND REFRIGERATOR HAVING THE SAME Non-Final OA Samsung Electronics Co., Ltd.
18577557 Method of Inactivating Pathogens, Control System and Robot System Final Rejection ABB Schweiz AG
18192705 VOLATILE DISPENSING DEVICE WITH DISPENSER MOUNT Final Rejection The Procter & Gamble Company
18564203 STERILIZER GASIFICATION APPARATUS AND STERILIZER GASIFICATION METHOD Final Rejection DAI NIPPON PRINTING CO., LTD.
18853892 DENTAL APPLIANCE CLEANSER Non-Final OA HALEON UK IP LIMITED

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Frequently Asked Questions

What is examiner Donald R Spamer's allowance rate?

59.4% of resolved applications examined by Donald R Spamer were allowed (576 resolved cases), compared with 38.8% across Art Unit 1758 over the last five years.

Does an interview help with examiner Donald R Spamer?

This examiner's interview lift is +32.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Donald R Spamer take to allow a patent?

Applications allowed by Donald R Spamer took 1,025 days on average from filing to allowance.

Which art unit does examiner Donald R Spamer work in?

Donald R Spamer examines applications in Art Unit 1758 in Tech Center 1700 (Chemistry & Materials).

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