Prosecution Insights
Last updated: October 27, 2026

Satya B Sastri, USPTO Patent Examiner

Listed by the USPTO as SASTRI, SATYA B

Tech Center 1700 • Art Units: 1732 1742 1762 1763 1796

This examiner grants 63% of resolved cases

Analysis

SASTRI, SATYA B examines in Tech Center 1700 and Art Unit 1732. The profile covers 910 resolved cases, with a 62.6% allowance rate and a 29.4% interview lift. Median time to allowance is 1086 days. The substantial history supports examiner-specific analysis, and the interview measure provides a useful factor for planning prosecution communications.

Listed companies include Daikin Industries Ltd., Mitsubishi Chemical Corporation, and LG Chem Ltd. Listed firms are SUGHRUE MION, PLLC, OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., and BIRCH STEWART KOLASCH & BIRCH, LLP. Their activity gives practitioners relevant reference points for chemical and materials matters.

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

Performance Statistics

62.6%
Allow Rate
-2.4% vs TC avg
971
Total Applications
+29.4%
Interview Lift
1086
Avg Prosecution Days
Based on 910 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
12.3%
§102 Novelty
51.1%
§103 Obviousness
24.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17780573 SHELF LIFE- AND TRANSPORT STABILIZERS FOR POLYMERIZABLE COMPOUNDS Non-Final OA BASF SE
18031398 PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE RESIN FILM USING SAME, COLOR FILTER AND DISPLAY DEVICE Final Rejection SAMSUNG SDI CO., LTD.
18008997 RESIN COMPOSITION, OPTICAL FIBER SECONDARY COATING MATERIAL, OPTICAL FIBER, AND OPTICAL FIBER PRODUCTION METHOD Non-Final OA SUMITOMO ELECTRIC INDUSTRIES, LTD.
18023853 ETHYLENE/PROPYLENE-BASED COPOLYMER RUBBER COMPOSITION Non-Final OA NOK CORPORATION
19013081 FLUORINE-CONTAINING COPOLYMER Final Rejection DAIKIN INDUSTRIES, LTD.
18894314 FLUORINE-CONTAINING COPOLYMER Final Rejection DAIKIN INDUSTRIES, LTD.
18892976 FLUORINE-CONTAINING COPOLYMER Final Rejection DAIKIN INDUSTRIES, LTD.
18452126 FLUORINE-CONTAINING COPOLYMER Final Rejection DAIKIN INDUSTRIES, LTD.
18451915 FLUORINE-CONTAINING COPOLYMER Final Rejection DAIKIN INDUSTRIES, LTD.
18450491 COPOLYMER, MOLDED BODY, EXTRUDED BODY, AND TRANSFER MOLDED BODY Final Rejection DAIKIN INDUSTRIES, LTD.
18449873 FLUORINE-CONTAINING COPOLYMER Final Rejection DAIKIN INDUSTRIES, LTD.
18184306 FLUORINE-CONTAINING POLYMER AND PRODUCTION METHOD THEREOF Final Rejection Daikin Industries, Ltd.
18272201 COMPOSITION INCLUDING ORGANOSILICON COMPOUND, RUBBER COMPOUNDING AGENT, AND RUBBER COMPOSITION Final Rejection SHIN-ETSU CHEMICAL CO., LTD.
18334482 NOVEL BORATE COMPOUND Final Rejection AGC INC.
17767122 MOULDING COMPOSITION CONTAINING POLYETHERAMIDE (PEA) Non-Final OA Evonik Operations GmbH
18285835 PRE-POLYMERIZED CATALYST COMPONENTS FOR THE POLYMERIZATION OF OLEFINS Non-Final OA Basell Poliolefine Italia S.r.l.
18676464 RESIN COMPOSITION Non-Final OA NAN YA PLASTICS CORPORATION
18263594 METHOD OF PRODUCING POLYMERIZABLE COMPOSITION AND METHOD OF PRODUCING PHOTOCHROMIC ARTICLE Final Rejection HOYA LENS THAILAND LTD.
18276153 HAFNIUM METALLOCENES HAVING NONIDENTICAL LIGANDS Non-Final OA Dow Global Technologies LLC
17907480 ATTENUATED POST-METALLOCENE CATALYSTS Non-Final OA Dow Global Technologies LLC
18691418 POLYCARBONATE RESIN COMPOSITION, METHOD OF PREPARING THE SAME, AND MOLDED ARTICLE INCLUDING THE SAME Non-Final OA LG CHEM, LTD.
17763305 Modified Conjugated Diene-Based Polymer, Method for Preparing the Same, and Rubber Composition Including the Same Final Rejection LG CHEM, LTD.
17920143 MALEIMIDE-BASED COPOLYMER, MALEIMIDE-BASED COPOLYMER COMPOSITION, RESIN COMPOSITION, AND INJECTION MOLDED BODY Non-Final OA DENKA COMPANY LIMITED
17795035 ACRYLIC RUBBER, RUBBER COMPOSITION, CROSSLINKED PRODUCT OF SAME, AND RUBBER HOSE Non-Final OA Denka Company Limited
18017801 CYCLOOLEFIN RESIN CURED PRODUCT Final Rejection RIMTEC CORPORATION

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Frequently Asked Questions

What is examiner Satya B Sastri's allowance rate?

62.6% of resolved applications examined by Satya B Sastri were allowed (910 resolved cases), compared with 53.6% across Art Unit 1732 over the last five years.

Does an interview help with examiner Satya B Sastri?

This examiner's interview lift is +29.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Satya B Sastri take to allow a patent?

Applications allowed by Satya B Sastri took 1,086 days on average from filing to allowance.

Which art unit does examiner Satya B Sastri work in?

Satya B Sastri examines applications in Art Unit 1732 in Tech Center 1700 (Chemistry & Materials).

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