Prosecution Insights
Last updated: October 26, 2026

Christopher Lindsay Johnson, USPTO Patent Examiner

Listed by the USPTO as JOHNSON, CHRISTOPHER LINDSAY

Tech Center 4100 • Art Units: 1629 1691 4100

This examiner grants 49% of resolved cases

Analysis

JOHNSON, CHRISTOPHER LINDSAY handles cases in USPTO Tech Center 4100 and Art Unit 1629. Across 35 resolved cases, the profile shows a 48.6% allowance rate and a median of 1242 days to allowance. Interview lift is 78.3%, identifying interviews as a particularly prominent feature of the recorded outcome pattern.

The company portfolio includes THE GENERAL HOSPITAL Corporation, Trasveda Ltd., and Massachusetts Institute of Technology. The leading firms are FOLEY HOAG, LLP (General), SUGHRUE MION, PLLC, and Abel Schillinger, LLP. The limited case volume warrants caution, but practitioners should give interview preparation close attention alongside detailed written responses.

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

Performance Statistics

48.6%
Allow Rate
-11.4% vs TC avg
84
Total Applications
+78.3%
Interview Lift
1242
Avg Prosecution Days
Based on 35 resolved cases, 2023–2026

Rejection Statute Breakdown

2.3%
§101 Eligibility
20.0%
§102 Novelty
37.7%
§103 Obviousness
31.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18730491 HETEROARYL DERIVATIVE AND USES THEREOF Non-Final OA KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
18862344 USE OF (5S)-3-[3-(3-CHLORO-2-FLUOROPHENOXY)-6-METHYLPYRIDAZIN-4-YL]-5-(2-CHLORO-4-METHYLBENZYL)-5,6-DIHYDRO-4H-1,2,4-OXADIAZINE FOR CONTROLLING UNWANTED MICROORGANISMS Non-Final OA Bayer Aktiengesellschaft
18867521 EMULSION WITH GLYCERYL CAPRYLATE AND AT LEAST ONE EMOLLIENT CHOSEN FROM MONO, DI AND/OR TRIESTER Non-Final OA BEIERSDORF AG

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Frequently Asked Questions

What is examiner Christopher Lindsay Johnson's allowance rate?

48.6% of resolved applications examined by Christopher Lindsay Johnson were allowed (35 resolved cases), compared with 42.3% across Art Unit 1629 over the last five years.

Does an interview help with examiner Christopher Lindsay Johnson?

This examiner's interview lift is +78.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Christopher Lindsay Johnson take to allow a patent?

Applications allowed by Christopher Lindsay Johnson took 1,242 days on average from filing to allowance.

Which art unit does examiner Christopher Lindsay Johnson work in?

Christopher Lindsay Johnson examines applications in Art Unit 1629 in Tech Center 4100.

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