Prosecution Insights
Last updated: October 26, 2026

Lee E Sanderson, USPTO Patent Examiner

Listed by the USPTO as SANDERSON, LEE E

Tech Center 4100 • Art Units: 1747 1782 2884 3991 4125

This examiner grants 45% of resolved cases

Analysis

Lee E. Sanderson, in Tech Center 4100 and Art Unit 1747, has 491 resolved cases. The allowance rate is 45.2 percent, and the median days to allowance is 1461. The interview lift is 45.2 percent, which is equal to the baseline allowance rate. This 45.2 percent lift indicates that interviews are a highly effective strategy for increasing the probability of an allowance.

LG Display Co., Ltd., LG Energy Solution Ltd., and JT International S.A. are the top companies. BIRCH STEWART KOLASCH & BIRCH, LLP, GOODWIN PROCTER LLP, and McDermott Will & Schulte LLP are the top firms. The 45.2 percent allowance rate is based on 491 resolved cases. Practitioners should consider the 1461 median days to allowance when planning their prosecution timeline. The 45.2 percent interview lift is a standout metric for this examiner's profile.

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

Performance Statistics

45.2%
Allow Rate
-14.8% vs TC avg
516
Total Applications
+45.2%
Interview Lift
1461
Avg Prosecution Days
Based on 491 resolved cases, 2023–2026

Rejection Statute Breakdown

0.7%
§101 Eligibility
9.4%
§102 Novelty
57.4%
§103 Obviousness
25.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19255723 Organic Light Emitting Display Device for Enhancing Efficiency Non-Final OA LG Display Co., Ltd.
19032840 Organic Light-Emitting Display Device with Spacer Between Sub-Pixels Final Rejection LG Display Co., Ltd.
19299178 BATTERY MODULE, BATTERY PACK INCLUDING BATTERY MODULE, AND VEHICLE INCLUDING BATTERY PACK Non-Final OA LG ENERGY SOLUTION, LTD.
18626318 UV-PROTECTION OF PHOTOSENSITIVE PIGMENTS VIA INCORPORATION INTO METAL ORGANIC FRAMEWORKS (MOFS) Non-Final OA The Government of the United States of America, as Represented by the Secretary of the Navy
18205316 Electronic Vapour Inhalers Final Rejection JT International SA
18709042 POLYARYLETHER COPOLYMERS BASED ON DIOL SUGAR ALCOHOLS Non-Final OA BASF SE
19319333 ORGANOSILOXANE COMPOUND AND SURFACE TREATMENT AGENT Final Rejection SHIN-ETSU CHEMICAL CO., LTD.
18721436 AQUEOUS DISPERSION COMPOSITION CONTAINING POLYESTER RESIN Non-Final OA TOYOBO MC CORPORATION
18690707 POLYESTER POLYMER, AND METHOD FOR PREPARING THE SAME, CATALYST SYSTEM Non-Final OA LG CHEM, LTD.

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Frequently Asked Questions

What is examiner Lee E Sanderson's allowance rate?

45.2% of resolved applications examined by Lee E Sanderson were allowed (491 resolved cases), compared with 38.3% across Art Unit 1747 over the last five years.

Does an interview help with examiner Lee E Sanderson?

This examiner's interview lift is +45.2 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Lee E Sanderson take to allow a patent?

Applications allowed by Lee E Sanderson took 1,461 days on average from filing to allowance.

Which art unit does examiner Lee E Sanderson work in?

Lee E Sanderson examines applications in Art Unit 1747 in Tech Center 4100.

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