Prosecution Insights
Last updated: October 26, 2026

Tigabu Kassa, USPTO Patent Examiner

Listed by the USPTO as KASSA, TIGABU

Tech Center 1600 • Art Units: 1615 1619

This examiner grants 37% of resolved cases

Analysis

Tigabu Kassa works in tech center 1600 and art unit 1615, with 725 resolved cases. The allowance rate is 36.7%, and the median time to allowance is 1562 days. Interview lift is 27.9%, indicating a favorable association between interviews and allowance outcomes in the available record.

The listed companies are ThermoLife International LLC, The Johns Hopkins University, and R.P. Scherer Technologies LLC. The listed firms are BOOTH UDALL, PLC, MICHAEL BEST & FRIEDRICH LLP (Mke), and OLIFF PLC. Practitioners may consider interviews as one component of a broader response strategy, while accounting for the extended median timing.

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

Performance Statistics

36.7%
Allow Rate
-23.3% vs TC avg
801
Total Applications
+27.9%
Interview Lift
1562
Avg Prosecution Days
Based on 725 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
11.3%
§102 Novelty
64.9%
§103 Obviousness
15.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17727123 EFFERVESCENT ORAL COMPOSITION Non-Final OA NICOVENTURES TRADING LIMITED
17530559 PHARMACEUTICAL COMPOSITION, PHARMACEUTICAL DOSAGE FORM, PROCESS FOR THEIR PREPARATION, METHODS FOR TREATING AND USES THEREOF Final Rejection Boehringer Ingelheim International GmbH
18315330 BIOMIMETIC ARTIFICIAL CELLS: ANISOTROPIC SUPPORTED LIPID BILAYERS ON BIODEGRADABLE MICRO AND NANOPARTICLES FOR SPATIALLY DYNAMIC SURFACE BIOMOLECULE PRESENTATION Final Rejection The Johns Hopkins University
18187526 CHEMICAL COMPOSITION Non-Final OA The Johns Hopkins University
16851177 BIOCOMPATIBLE ORGANOGEL MATRICES FOR INTRAOPERATIVE PREPARATION OF A DRUG DELIVERY DEPOT Final Rejection DePuy Synthes Products, Inc.
16858439 Coated Drug Compositions and Methods of Preparing the Same Final Rejection Applied Materials, Inc.
18516295 Softgel Capsule and Method of Marking a Softgel Capsule Final Rejection R.P. Scherer Technologies, LLC
18208635 ENTERIC BISACODYL SOFTGEL CAPSULE Final Rejection R.P. Scherer Technologies, LLC
18867064 CONCENTRATED CLEANSING COMPOSITIONS Non-Final OA Conopco, Inc., d/b/a UNILEVER
17293621 SURFACTANT-STABILIZED FLUID INTERFACE AND DISPERSION COMPRISING ONE OR MORE DROPLETS HAVING A SURFACTANT STABILIZED FLUID INTERFACE Final Rejection MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V.

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Frequently Asked Questions

What is examiner Tigabu Kassa's allowance rate?

36.7% of resolved applications examined by Tigabu Kassa were allowed (725 resolved cases), compared with 43.4% across Art Unit 1615 over the last five years.

Does an interview help with examiner Tigabu Kassa?

This examiner's interview lift is +27.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Tigabu Kassa take to allow a patent?

Applications allowed by Tigabu Kassa took 1,562 days on average from filing to allowance.

Which art unit does examiner Tigabu Kassa work in?

Tigabu Kassa examines applications in Art Unit 1615 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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