Prosecution Insights
Last updated: October 27, 2026

Christopher P Mcandrew, USPTO Patent Examiner

Listed by the USPTO as MCANDREW, CHRISTOPHER P

Tech Center 3600 • Art Units: 2837 2857 2858 3636

This examiner grants 86% of resolved cases

Analysis

MCANDREW, CHRISTOPHER P is assigned to Tech Center 3600 and Art Unit 2837. His profile includes 997 resolved cases, an 86.0% allowance rate, and a median of 833 days to allowance. This volume provides a substantial basis for viewing the allowance result as a recurring prosecution pattern rather than an isolated outcome.

The interview lift is 13.8%, showing a positive association between interviews and allowance outcomes in the record. The listed companies are Samsung Electronics Co., Ltd., Hella GmbH & Co. KGaA, and Commissariat à l'Énergie Atomique et aux Énergies Alternatives. The leading firms are OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., C. Tumey Law Group PLLC, and Farber LLC. Counsel can use these participants as signals of relevant filing and prosecution experience.

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

Performance Statistics

86.0%
Allow Rate
+34.0% vs TC avg
1,033
Total Applications
+13.8%
Interview Lift
833
Avg Prosecution Days
Based on 997 resolved cases, 2023–2026

Rejection Statute Breakdown

2.2%
§101 Eligibility
28.6%
§102 Novelty
50.0%
§103 Obviousness
16.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19169564 ROLLABLE ELECTRONIC DEVICE COMPRISING SHIELDING MEMBER Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18959808 METHOD AND DEVICE FOR DETECTING A FAILURE OF A LITHIUM-ION BATTERY CELL Non-Final OA COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
18906665 ELECTRONIC COMPONENT INTENDED TO BE PLACED ON BOARD A VEHICLE Non-Final OA Valeo eAutomotive Germany GmbH
18942208 BATTERY AUTHENTICATION USING ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY Non-Final OA Microsoft Technology Licensing, LLC
19113119 METHODS AND APPARATUS FOR DETECTING PORT CONTAMINATION IN PLAYBACK DEVICES Non-Final OA Sonos, Inc.
19003882 FAULT DETECTION Non-Final OA THERMO KING LLC
18857967 IMPEDANCE MEASUREMENT APPARATUS AND IMPEDANCE MEASUREMENT METHOD Non-Final OA SCREEN Holdings Co., Ltd.
18966126 DETECTION SYSTEM Final Rejection Industrial Technology Research Institute
19050905 AUTOMATED TEST EQUIPMENT, METHOD FOR TESTING A DEVICE UNDER TEST AND COMPUTER PROGRAM USING A FITTING APPROACH TO OBTAIN TEMPERATURE CONTROL INSTRUCTIONS Non-Final OA Advantest Corporation
19106247 METHOD AND APPARATUS FOR REDUCING THE NOISE TEMPERATURE OF SYSTEMS COMPRISING SAMPLES WHICH INTERACT WITH OSCILLATING ELECTROMAGNETIC FIELDS SUPPORTED BY ELECTROMAGNETIC RESONATORS Non-Final OA IMPERIAL COLLEGE INNOVATIONS LIMITED

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 Christopher P Mcandrew's allowance rate?

86.0% of resolved applications examined by Christopher P Mcandrew were allowed (997 resolved cases), compared with 61.1% across Art Unit 2837 over the last five years.

Does an interview help with examiner Christopher P Mcandrew?

This examiner's interview lift is +13.8 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 P Mcandrew take to allow a patent?

Applications allowed by Christopher P Mcandrew took 833 days on average from filing to allowance.

Which art unit does examiner Christopher P Mcandrew work in?

Christopher P Mcandrew examines applications in Art Unit 2837 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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