Prosecution Insights
Last updated: October 26, 2026

Christopher R. Dandridge, USPTO Patent Examiner

Listed by the USPTO as DANDRIDGE, CHRISTOPHER R.

Tech Center 3700 • Art Units: 2853 3752

This examiner grants 66% of resolved cases

Analysis

DANDRIDGE, CHRISTOPHER R. is a Tech Center 3700 examiner in Art Unit 2853 with 623 resolved cases. The allowance rate is 65.8%, and the median time to allowance is 1157 days. The volume provides a meaningful basis for reviewing prosecution patterns and setting expectations for claim development.

The interview lift is 35.6%, indicating a positive association with interviews. Applicants may consider an interview as a practical tool for testing proposed distinctions and narrowing the response to the issues that matter most.

Graco Minnesota Inc., Safran S.A., and Robert Bosch GmbH are the listed companies. The listed firms are FOLEY & LARDNER LLP, Kinney & Lange, P.A., and ABB - Whitmyer IP Group LLC.

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

Performance Statistics

65.8%
Allow Rate
-4.2% vs TC avg
683
Total Applications
+35.6%
Interview Lift
1157
Avg Prosecution Days
Based on 623 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
21.0%
§102 Novelty
52.2%
§103 Obviousness
21.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19116794 NOZZLE, DYNAMIC SPRAYING DEVICE, COATING METHOD AND REPAIR METHOD ASSOCIATED THEREWITH Non-Final OA SAFRAN NACELLES
18794364 BACKPACK SPRAYER USER INTERFACE Final Rejection Milwaukee Electric Tool Corporation
18452041 FUEL INJECTION VALVE Non-Final OA Robert Bosch GmbH
18577465 METHOD FOR CONTROLLING A PRINTHEAD Final Rejection ABB Schweiz AG
18871538 CONTINUOUS FIRE PROTECTION STRIPS FOR A FIRE STOP AND FIRE STOP Non-Final OA Hilti Aktiengesellschaft
18840601 BLOWOFF NOZZLE Non-Final OA Toray Industries, Inc.
18898381 BATTERY PACK Final Rejection SAMSUNG SDI CO., LTD.
19129336 VIBRATING MESH MODULE WITH INTEGRATED FLOW CHAMBER Non-Final OA Philip Morris Products S.A.
18941081 FIRE PROTECTION SYSTEMS AND METHODS FOR STORAGE Non-Final OA Tyco Fire Products LP
19135237 FLUID DISCHARGING DEVICE Non-Final OA AIRBUS DEFENCE AND SPACE, S.A.U.
19130445 PRESSURIZED FLUID SYSTEM FOR CLEANING SENSOR Non-Final OA International Truck Intellectual Property Company, LLC
19181587 ROLL FORMED BEAM ASSEMBLY FOR LIGHTWEIGHT FIELD IRRIGATION APPARATUS Non-Final OA Valmont Industries, Inc.
18730759 FIRE SUPPRESSING AND EXTINGUISHING FOAM COMPOSITIONS, SYSTEMS AND METHOD OF MANUFACTURE Non-Final OA Individual inventor

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Frequently Asked Questions

What is examiner Christopher R. Dandridge's allowance rate?

65.8% of resolved applications examined by Christopher R. Dandridge were allowed (623 resolved cases), compared with 72.7% across Art Unit 2853 over the last five years.

Does an interview help with examiner Christopher R. Dandridge?

This examiner's interview lift is +35.6 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 R. Dandridge take to allow a patent?

Applications allowed by Christopher R. Dandridge took 1,157 days on average from filing to allowance.

Which art unit does examiner Christopher R. Dandridge work in?

Christopher R. Dandridge examines applications in Art Unit 2853 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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