Prosecution Insights
Last updated: October 02, 2026

Examiner: JOHNSON, CHRISTOPHER LINDSAY

Tech Center 4100 • Art Units: 1691 4100

This examiner grants 47% of resolved cases

Analysis

Christopher Lindsay Johnson serves in Tech Center 4100 and Art Unit 1691. He has 32 resolved cases and an allowance rate of 46.9 percent. This rate indicates that slightly less than half of the applications result in an allowance. Practitioners should be prepared for a competitive examination process where clear and concise technical arguments are necessary to reach the 46.9 percent threshold.

The interview lift is 81.0 percent. This is an exceptionally high figure, suggesting that interviews are extremely effective with this examiner. An interview may nearly double the 46.9 percent baseline allowance rate, making it an essential strategy for any practitioner. Direct communication appears to be the most successful way to address the examiner's concerns and move an application toward a grant.

The median days to allowance is 1240. This pendency is moderate, representing a reasonable timeline for successful prosecution. Given the 81.0 percent lift, practitioners should prioritize interviews early in the process to maximize the 46.9 percent chance of allowance. This strategy may also help manage the 1240 day timeline by resolving issues more quickly than through written responses alone.

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

Performance Statistics

46.9%
Allow Rate
-13.1% vs TC avg
76
Total Applications
+81.0%
Interview Lift
1240
Avg Prosecution Days
Based on 32 resolved cases, 2023–2026

Rejection Statute Breakdown

3.0%
§101 Eligibility
20.8%
§102 Novelty
38.1%
§103 Obviousness
26.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18730491 HETEROARYL DERIVATIVE AND USES THEREOF Non-Final OA KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
18565049 Polymeric Antifouling Coating with Antimicrobial Peptides Non-Final OA THE UNIVERSITY OF BRITISH COLUMBIA
18274560 METHODS FOR INHIBITING CORONAVIRUSES USING SULFORAPHANE Non-Final OA The Johns Hopkins University
18556081 COMPOUNDS WITH IMPROVED CARDIAC SAFETY FOR THE TREATMENT OF CANCER AND NEURODEGENERATIVE DISORDERS Non-Final OA The Board of Trustees of the Leland Stanford Junior University
17775100 EFFECTIVE INTRANASAL DELIVERY TO BRAIN Non-Final OA MASSACHUSETTS INSTITUTE OF 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
17921614 COMBINATION OF BCMA-DIRECTED T CELL THERAPY AND AN IMMUNOMODULATORY COMPOUND Non-Final OA Juno Therapeutics, Inc.
18007822 METHODS OF TREATING A CORONAVIRUS INFECTION Non-Final OA The General Hospital Corporation
17791770 STIMULATION OF HAIR GROWTH Non-Final OA The General Hospital Corporation
18145595 UREA INHIBITORS OF MICRO-RNA Non-Final OA Board of Regents, The University of Texas System
18867521 EMULSION WITH GLYCERYL CAPRYLATE AND AT LEAST ONE EMOLLIENT CHOSEN FROM MONO, DI AND/OR TRIESTER Non-Final OA BEIERSDORF AG
18288131 COMPOSITION FOR AMELIORATING SKIN TISSUE ABNORMALITY Non-Final OA Kyoto University
18376498 COMPOSITIONS AND METHODS FOR THE TREATMENT OF CANCER Non-Final OA The State of Israel, Ministry of Agriculture & Rural Development, Agricultural Research Organization
17414549 LUMINESCENT SOLAR CONCENTRATOR COMPRISING DITHIENYLPYRIDINETHIADIOAZOLE COMPOUNDS Final Rejection ENI S.P.A.
18537780 CORNEAL THERAPY Non-Final OA Harrow IP, LLC
18034530 COMPOUND CONTAINING 2,4-THIAZOLE RING, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF Non-Final OA SHANDONG UNIVERSITY
17923803 METHODS OF MONITORING KRAS MUTATIONS Non-Final OA Cardiff Oncology, Inc.
18105460 CONJUGATES COMPRISING REVERSIBLE LINKERS AND USES THEREOF Final Rejection Ascendis Pharma A/S

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