Prosecution Insights
Last updated: October 26, 2026

Rufus L Phillips, USPTO Patent Examiner

Listed by the USPTO as PHILLIPS, RUFUS L

Tech Center 3600 • Art Units: 2800 2871 2877 3645

This examiner grants 63% of resolved cases

Analysis

PHILLIPS, RUFUS L is a USPTO patent examiner in tech center 3600 and art unit 2800. The profile includes 359 resolved cases, an allowance rate of 62.7%, and a median of 1135 days to allowance. The interview lift is 32.5%, indicating a strong positive association between interviews and allowance outcomes in the reported cases.

The listed companies are Becton, Dickinson and Company, Samsung Electronics Co., Ltd., and Sony Group Corporation. The listed firms are CHIP LAW GROUP, COOLEY LLP, and FISH & RICHARDSON P.C. (TC). The allowance rate supports careful attention to claim scope and rejection response. The median timing should be incorporated into prosecution forecasts, and the interview measure makes examiner engagement a material option when direct clarification may improve the presentation of technical distinctions.

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

Performance Statistics

62.7%
Allow Rate
+10.7% vs TC avg
388
Total Applications
+32.5%
Interview Lift
1135
Avg Prosecution Days
Based on 359 resolved cases, 2023–2026

Rejection Statute Breakdown

1.5%
§101 Eligibility
15.1%
§102 Novelty
58.5%
§103 Obviousness
18.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18441476 SUBSTRATE TEST METHOD Final Rejection SAMSUNG ELECTRONICS CO., LTD.
18392339 MICROPARTICLE MEASURING APPARATUS AND MICROPARTICLE MEASURING METHOD Non-Final OA SONY GROUP CORPORATION
18971965 MEASUREMENT DEVICE Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18840043 Calibration Method and System Final Rejection Precision Planting LLC
18879248 OPTICAL CRITICAL DIMENSIONS (OCD) METROLOGY FOR THICK STACKS Non-Final OA NOVA LTD.
18596301 Light Detection Systems Having A Secondary Light Scatter Detector And Methods For Using Same Final Rejection Becton, Dickinson and Company
18199756 Flow Cytometer With Optical Equalization Non-Final OA Becton, Dickinson and Company
18574585 Method and apparatus for measuring a force on at least one particle in a fluid, computer program product and computer-readable storage medium Non-Final OA Max-Planck-Gesellschaft zur Förderung der Wissenschaften E.V.

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 Rufus L Phillips's allowance rate?

62.7% of resolved applications examined by Rufus L Phillips were allowed (359 resolved cases), compared with 69.7% across Art Unit 2800 over the last five years.

Does an interview help with examiner Rufus L Phillips?

This examiner's interview lift is +32.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Rufus L Phillips take to allow a patent?

Applications allowed by Rufus L Phillips took 1,135 days on average from filing to allowance.

Which art unit does examiner Rufus L Phillips work in?

Rufus L Phillips examines applications in Art Unit 2800 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