Prosecution Insights
Last updated: October 27, 2026

Kaeleigh Elizabeth Olsen, USPTO Patent Examiner

Listed by the USPTO as OLSEN, KAELEIGH ELIZABETH

Tech Center 1600 • Art Units: 1619

This examiner grants 47% of resolved cases

Analysis

OLSEN, KAELEIGH ELIZABETH has resolved 34 cases in Tech Center 1600 and Art Unit 1619. The allowance rate is 47.1%, the interview lift is 64.3%, and the median time to allowance is 1263 days. The interview lift exceeds the allowance rate, indicating that interviews are a prominent feature of the available record. Since the docket contains 34 resolved cases, practitioners should use the figures as guidance rather than as a definitive forecast.

The principal companies are L'Oréal, MannKind Corporation, and Max Co., Ltd. The leading firms are OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., BIRCH STEWART KOLASCH & BIRCH, LLP, and BUCHANAN, INGERSOLL & ROONEY PC. These affiliations add context for counsel evaluating prosecution in Art Unit 1619.

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

Performance Statistics

47.1%
Allow Rate
-12.9% vs TC avg
87
Total Applications
+64.3%
Interview Lift
1263
Avg Prosecution Days
Based on 34 resolved cases, 2023–2026

Rejection Statute Breakdown

2.1%
§101 Eligibility
9.5%
§102 Novelty
47.3%
§103 Obviousness
29.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18265460 MICROPARTICLE COMPOSITIONS COMPRISING FUNGICIDES Final Rejection BASF CORPORATION
18558976 COMPOSITIONS CONTAINING AT LEAST ONE BIOSURFACTANT AND AT LEAST ONE SULFONIC OR SULFINIC ACID DERIVATIVE Non-Final OA Evonik Operations Gmbh
18290065 COSMETIC COMPOSITION COMPRISING AT LEAST ONE ANIONIC SURFACTANT, ONE AMPHOTERIC OR ZWITTERIONIC SURFACTANT, ONE OIL-IN-WATER EMULSION AND ONE PARTICULAR AGENT Final Rejection L'OREAL
18224125 METHODS FOR REDUCING FRIZZ AND IMPROVING SMOOTHNESS OF HAIR Final Rejection L'OREAL
17999220 ANTI-ACNE COMPOSITIONS Non-Final OA L'OREAL
17787526 RETINOL-BASED SERUM Non-Final OA L'OREAL
17787508 RETINOL-BASED COMPOSITION Non-Final OA L'OREAL
18289669 RESHAPING COMPOSITION FOR KERATIN FIBERS Non-Final OA KAO GERMANY GMBH
17788582 OIL-IN-WATER-TYPE EMULSIFIED COSMETIC Non-Final OA SHISEIDO COMPANY, LTD.
18005494 HERBICIDAL COMPOSITION AND METHOD FOR CONTROLLING WEEDS Non-Final OA SUMITOMO CHEMICAL COMPANY, LIMITED
18014044 POLYETHER PHOSPHATE ESTER COMPOUNDS, COMPOSITIONS AND USES Non-Final OA Croda, Inc.
17909342 COMPOSITION COMPRISING AN AVENANTHRAMIDE OR AN ANALOGUE THEREOF WITH IMPROVED STABILITY Non-Final OA SYMRISE AG

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Frequently Asked Questions

What is examiner Kaeleigh Elizabeth Olsen's allowance rate?

47.1% of resolved applications examined by Kaeleigh Elizabeth Olsen were allowed (34 resolved cases), compared with 22.7% across Art Unit 1619 over the last five years.

Does an interview help with examiner Kaeleigh Elizabeth Olsen?

This examiner's interview lift is +64.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kaeleigh Elizabeth Olsen take to allow a patent?

Applications allowed by Kaeleigh Elizabeth Olsen took 1,263 days on average from filing to allowance.

Which art unit does examiner Kaeleigh Elizabeth Olsen work in?

Kaeleigh Elizabeth Olsen examines applications in Art Unit 1619 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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