Prosecution Insights
Last updated: October 26, 2026

Elizabeth A Gwartney, USPTO Patent Examiner

Listed by the USPTO as GWARTNEY, ELIZABETH A

Tech Center 1700 • Art Units: 1759 1781 1791 1793 1794 1796

This examiner grants 36% of resolved cases

Analysis

GWARTNEY, ELIZABETH A is a USPTO patent examiner in tech center 1700 and art unit 1759. The profile includes 683 resolved cases, an allowance rate of 36.0%, and an interview lift of 34.9%. The median time to allowance is 2551 days. The allowance measure indicates that allowance was recorded in a minority of cases, while the interview measure shows a substantial positive association with allowance outcomes. The median timeline is a major planning consideration and supports early attention to prosecution duration, continuation needs, and commercial timing.

The leading companies are Cargill Incorporated, Impossible Foods Inc., and Tesla Biohealing Inc. The leading firms are Ipsilon USA - NLO, CARTER, DELUCA & FARRELL LLP, and FISH & RICHARDSON P.C. (TC). The technology mix includes food, biotechnology, and sustainability-related inventions. Applicants may want robust claim fallback positions and well-prepared interviews. Technical explanations should connect amendments closely to the disclosed process, composition, or biological function.

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

Performance Statistics

36.0%
Allow Rate
-29.0% vs TC avg
758
Total Applications
+34.9%
Interview Lift
2551
Avg Prosecution Days
Based on 683 resolved cases, 2023–2026

Rejection Statute Breakdown

3.5%
§101 Eligibility
7.8%
§102 Novelty
50.7%
§103 Obviousness
32.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18725734 NATURAL SAUCE, AND METHOD FOR PREPARING SAME Non-Final OA CJ CHEILJEDANG CORPORATION
18694891 INCREASING HYDROLYSIS EFFICIENCY IN CEREAL PROCESS BY EMPLOYING LYTIC POLYSACCHARIDES MONOOXYGENEASE (LPMO) IN COMBINATION WITH PROTEASES Non-Final OA SOCIETE DES PRODUITS NESTLE S.A.
18713284 COMPOSITIONS HAVING HIGH LEVELS OF DPA (n-3) AND METHODS FOR PRODUCING Non-Final OA DSM IP Assets B.V.
18724793 PACKAGED CARBONATED ALCOHOLIC BEVERAGE CONTAINING GIN AND PRODUCTION METHOD THEREFOR Final Rejection SUNTORY HOLDINGS LIMITED
18847816 SEMI-SOLID OIL-IN-WATER EMULSIFIED FOOD COMPOSITION COMPRISING CELLULOSE MICROFIBRILS Non-Final OA Conopco, Inc., d/b/a UNILEVER
18863121 CHEESE SUBSTITUTE PRODUCT Non-Final OA CARGILL, INCORPORATED
18856237 PROCESS FOR PREPARING BISCUIT FILLINGS Non-Final OA Cargill, Incorporated
18719331 PROCESS FOR REMOVING IMPURITIES FROM VEGETABLE OIL Final Rejection CARGILL, INCORPORATED
19100722 STABLE OLEOSOME PREPARATION FOR EDIBLE APPLICATIONS Non-Final OA ARCHER-DANIELS-MIDLAND COMPANY
18880968 MEAT-ANALOGUE COMPOSITION Non-Final OA AAK AB (publ)
18878611 METHOD FOR PRODUCING PROCESSED PLANT PROTEIN-CONTAINING COMPOSITION Non-Final OA AMANO ENZYME INC.
18220810 Method For Producing A High Protein Food Final Rejection Erie Group International, Inc.
17677798 FORTIFIED HIGH PROTEIN FOOD & PRODUCTION METHOD Non-Final OA Erie Group International, Inc.
18704262 FLOATABLE FOOD PRODUCT FOR MELTING AND/OR DISSOLVING IN A LIQUID Final Rejection Individual inventor

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Frequently Asked Questions

What is examiner Elizabeth A Gwartney's allowance rate?

36.0% of resolved applications examined by Elizabeth A Gwartney were allowed (683 resolved cases), compared with 69.3% across Art Unit 1759 over the last five years.

Does an interview help with examiner Elizabeth A Gwartney?

This examiner's interview lift is +34.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Elizabeth A Gwartney take to allow a patent?

Applications allowed by Elizabeth A Gwartney took 2,551 days on average from filing to allowance.

Which art unit does examiner Elizabeth A Gwartney work in?

Elizabeth A Gwartney examines applications in Art Unit 1759 in Tech Center 1700 (Chemistry & Materials).

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