Prosecution Insights
Last updated: October 26, 2026

Rabon A Sergent, USPTO Patent Examiner

Listed by the USPTO as SERGENT, RABON A

Tech Center 1700 • Art Units: 1638 1765 1796

This examiner grants 55% of resolved cases

Analysis

SERGENT, RABON A is assigned to Tech Center 1700 and art unit 1638. The record shows 1009 resolved cases, a 55.1% allowance rate, and a 24.1% interview lift. The median time to allowance is 1309 days, so the profile reflects a substantial docket with a long observed path to allowance.

The company list includes BASF SE, Sika Technology AG, and SABIC (Saudi Basic Industries Corporation). The listed firms are OLIFF PLC, Cantor Colburn - SABIC General, and Rankin, Hill & Clark LLP. The positive interview measure supports direct discussion of claim distinctions, while the allowance rate counsels against assuming that an interview will resolve prosecution independently.

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

Performance Statistics

55.1%
Allow Rate
-9.9% vs TC avg
1,058
Total Applications
+24.1%
Interview Lift
1309
Avg Prosecution Days
Based on 1009 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
15.4%
§102 Novelty
35.3%
§103 Obviousness
37.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18587732 POLYURETHANE-CONTAINING NON-FOAMED MOLDED BODY Non-Final OA CANON KABUSHIKI KAISHA
18250765 Polyurethanes, Polishing Articles and Polishing Systems Therefrom and Method of Use Thereof Final Rejection 3M INNOVATIVE PROPERTIES COMPANY
18573796 POLYURETHANE UREA FIBER OR FILM AND PREPARATION METHOD THEREOF Non-Final OA BASF SE
17784132 POLYUREA COPOLYMER Final Rejection BASF SE
18262509 POLY(CYCLIC ACETAL)S, METHODS OF MAKING SAME, AND USES THEREOF Non-Final OA Cornell University
18639048 POLYCARBONATE RESIN COMPOSITION Non-Final OA MITSUBISHI CHEMICAL CORPORATION
18703095 Polycarbonate Resin and Method for Preparing Same Non-Final OA LG Chem, Ltd.
18685309 DOUBLE METAL CYANIDE CATALYST, METHOD FOR PREPARING SAME AND METHOD FOR PREPARING POLYALKYLENE CARBONATE USING THE CATALYST Non-Final OA LG CHEM, LTD.
18711650 PREPOLYMER COMPOSITION, POLYURETHANE RESIN, ELASTIC MOLDED ARTICLE, AND PRODUCTION METHOD OF PREPOLYMER COMPOSITION Non-Final OA MITSUI CHEMICALS, INC.
18245448 WATER-DISPERSIBLE BLOCKED ISOCYANATE, FIBER-TREATING AGENT, WATER REPELLENT, COATING COMPOSITION, AND ADHESIVE Final Rejection MITSUI CHEMICALS, INC.
18572456 POLYMER DEVOLATILIZATION PROCESS Non-Final OA TOTALENERGIES ONETECH BELGIUM

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Frequently Asked Questions

What is examiner Rabon A Sergent's allowance rate?

55.1% of resolved applications examined by Rabon A Sergent were allowed (1,009 resolved cases), compared with 48.8% across Art Unit 1638 over the last five years.

Does an interview help with examiner Rabon A Sergent?

This examiner's interview lift is +24.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Rabon A Sergent take to allow a patent?

Applications allowed by Rabon A Sergent took 1,309 days on average from filing to allowance.

Which art unit does examiner Rabon A Sergent work in?

Rabon A Sergent examines applications in Art Unit 1638 in Tech Center 1700 (Chemistry & Materials).

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