Prosecution Insights
Last updated: October 27, 2026

Brian M King, USPTO Patent Examiner

Listed by the USPTO as KING, BRIAN M

Tech Center 3700 • Art Units: 3744 3763

This examiner grants 70% of resolved cases

Analysis

KING, BRIAN M is assigned to tech center 3700 and art unit 3744. The profile reports 841 resolved cases and an allowance rate of 70.3%. The median time to allowance is 1121 days, while interviews are associated with a 23.7% lift.

The listed companies are L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, Mve Biological Solutions US LLC, and Chart Energy & Chemicals Inc. The leading firms are NOVICK, KIM & LEE, PLLC, dba NKL Law, EDELL, SHAPIRO & FINNAN, LLC, and CANTOR COLBURN LLP. The interview measure supports considering examiner contact in prosecution planning. The timing measure supports advance coordination of responses and portfolio milestones.

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

Performance Statistics

70.3%
Allow Rate
At TC average
900
Total Applications
+23.7%
Interview Lift
1121
Avg Prosecution Days
Based on 841 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
8.9%
§102 Novelty
45.3%
§103 Obviousness
38.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19090347 REFRIGERATOR EMPLOYING ROTATING MAGNETIC ARRAY DEVICE AND MAGNETIC COOLING APPARATUS Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18333324 AIRCRAFT SYSTEM, AIRCRAFT FUEL SYSTEM AND METHOD Final Rejection Airbus Operations Limited
18135792 PRECURSOR VESSEL COOLING ASSEMBLY, SYSTEM INCLUDING THE ASSEMBLY, AND METHODS OF USING SAME Final Rejection ASM IP Holding B.V.
18506214 SOLID STATE COOLER Final Rejection International Business Machines Corporation
18276846 DEVICE AND METHOD FOR REFRIGERATING OR LIQUEFYING A FLUID Non-Final OA L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude
18276603 DEVICE AND METHOD FOR REFRIGERATION OR LIQUEFACTION OF A FLUID Non-Final OA L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude
18018614 FACILITY AND METHOD FOR REFRIGERATING A FLUID Final Rejection L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
19211262 JOULE-THOMSON CRYOCOOLER Non-Final OA Sumitomo Heavy Industries, Ltd.
17735909 ALTERNATIVE TWO COLUMN HRU DESIGN WITH RICH REFLUX Final Rejection CONOCOPHILLIPS COMPANY
18610922 SYSTEM AND METHOD FOR THE PRODUCTION AND SUPPLY OF A DENSIFIED LIQUID OXYGEN PRODUCT Non-Final OA PRAXAIR TECHNOLOGY, INC.
18607928 APPARATUS AND PROCESS FOR PROVIDING NITROGEN AND OXYGEN Non-Final OA Air Products and Chemicals, Inc.
18234620 Apparatus and Process for Pre-Liquefaction Fluid Processing for Improved Liquefaction Operations Final Rejection Air Products and Chemicals, Inc.
19079590 CRYOPUMP SYSTEM Non-Final OA CRYO H&I, INC
19073144 METHOD FOR REGENERATING CRYOPUMP Non-Final OA CRYO H&I, INC
19018768 OPEN LOOP LIQUEFACTION PROCESS WITH NGL RECOVERY Non-Final OA Honeywell LNG LLC
17168770 METHOD AND SYSTEM FOR DECARBONIZED LNG PRODUCTION Non-Final OA Honeywell LNG LLC
18268268 COMBINED CYCLE NATURAL GAS PROCESSING SYSTEM Non-Final OA JGC Corporation

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Brian M King's allowance rate?

70.3% of resolved applications examined by Brian M King were allowed (841 resolved cases), compared with 0.0% across Art Unit 3744 over the last five years.

Does an interview help with examiner Brian M King?

This examiner's interview lift is +23.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Brian M King take to allow a patent?

Applications allowed by Brian M King took 1,121 days on average from filing to allowance.

Which art unit does examiner Brian M King work in?

Brian M King examines applications in Art Unit 3744 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month