Prosecution Insights
Last updated: October 26, 2026

Stephen Edward Rieth, USPTO Patent Examiner

Listed by the USPTO as RIETH, STEPHEN EDWARD

Tech Center 6200 • Art Units: 1613 1692 1759 1764 6221

This examiner grants 46% of resolved cases

Analysis

RIETH, STEPHEN EDWARD is a USPTO patent examiner in tech center 6200 and art unit 1613. The profile includes 672 resolved cases, an allowance rate of 45.5%, and a median of 1171 days to allowance. The resolved-case volume provides substantial evidence for evaluating the recorded pattern. The allowance rate reflects a minority of matters reaching allowance, while the median interval indicates that successful prosecution may involve an extended examination process.

The interview lift is 33.7%, making interviews a significant feature of the allowance outcomes in this profile. LG Chem Ltd., Covestro AG, and Eastman Chemical Company are the listed leading companies. Bryan Cave Leighton Paisner LLP (DC), Grüneberg Global IP, PLLC, and ROTHWELL, FIGG, ERNST & MANBECK, P.C. are the listed leading firms. Practitioners may benefit from early interview preparation, careful claim positioning, and scheduling that accommodates the 1171-day median.

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

Performance Statistics

45.5%
Allow Rate
-14.5% vs TC avg
738
Total Applications
+33.7%
Interview Lift
1171
Avg Prosecution Days
Based on 672 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
13.8%
§102 Novelty
41.0%
§103 Obviousness
32.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17926986 RECOVERING POLYMER FROM THREE-DIMENSIONAL PRINTED OBJECTS Non-Final OA HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
18008691 FLAME RETARDANT STYRENE POLYMER COMPOSITION AND PROCESS FOR RECYCLING STYRENE POLYMER-CONTAINING SCRAP Non-Final OA BASF SE
18535848 METHOD FOR REMOVING COLOR FROM POLYMERIC MATERIALS FOR CHEMICAL RECYCLING Non-Final OA International Business Machines Corporation
18330632 SEAL MEMBER FOR LIVESTOCK SENSOR AND LIVESTOCK SENSOR Non-Final OA DAIKIN INDUSTRIES, LTD.
18706399 NEW METHOD FOR RECYCLING OF POLYURETHANE Non-Final OA Evonik Operations GmbH
18041717 REMOVAL OF ODORANTS FROM POST-CONSUMER POLYOLEFIN WASTE Non-Final OA BOREALIS AG
18697882 PRODUCTION OF VIRGIN-QUALITY PET AND COPOLYESTER RAW MATERIALS FROM POLYESTER CARPET FIBERS Non-Final OA Eastman Chemical Company
17597586 PROCESS FOR THE PREPARATION OF POLYESTERS WITH RECYCLED MONOMERS FROM PYROLYSIS AND METHANOLYSIS Final Rejection Eastman Chemical Company
18567188 COMPOSITIONS COMPRISING POST-CONSUMER RECYLED RESIN AND ODOR-ACTIVE ZEOLITE TO MITIGATE TASTE AND ODOR Final Rejection Dow Global Technologies LLC
18687932 MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, AND RECYCLED PLASTIC, MOLDED PRODUCT USING THE SAME Non-Final OA LG CHEM, LTD.
18292301 MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPRATION METHOD THEREOF, AND RECYCLED PLASTIC, MOLDED PRODUCT USING THE SAME Non-Final OA LG CHEM, LTD.
18032141 MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, RECYCLED PLASTIC, AND MOLDED PRODUCT USING THE SAME Final Rejection LG CHEM, LTD.
18029808 MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, AND RECYCLED PLASTIC, MOLDED PRODUCT, PLASTICIZER COMPOSITION USING THE SAME Final Rejection LG CHEM, LTD.

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Frequently Asked Questions

What is examiner Stephen Edward Rieth's allowance rate?

45.5% of resolved applications examined by Stephen Edward Rieth were allowed (672 resolved cases), compared with 34.0% across Art Unit 1613 over the last five years.

Does an interview help with examiner Stephen Edward Rieth?

This examiner's interview lift is +33.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Stephen Edward Rieth take to allow a patent?

Applications allowed by Stephen Edward Rieth took 1,171 days on average from filing to allowance.

Which art unit does examiner Stephen Edward Rieth work in?

Stephen Edward Rieth examines applications in Art Unit 1613 in Tech Center 6200.

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