Prosecution Insights
Last updated: October 27, 2026

Christina H.W. Rosebach, USPTO Patent Examiner

Listed by the USPTO as ROSEBACH, CHRISTINA H.W.

Tech Center 1700 • Art Units: 1741 1763 1766 1794

This examiner grants 59% of resolved cases

Performance Statistics

59.2%
Allow Rate
-5.8% vs TC avg
494
Total Applications
-34.5%
Interview Lift
1144
Avg Prosecution Days
Based on 466 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
12.3%
§102 Novelty
58.0%
§103 Obviousness
22.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18266895 METHOD FOR TREATING WASTE PLASTICS BY POLYMER DISSOLUTION AND ADSORPTION PURIFICATION Non-Final OA IFP Energies nouvelles
18259159 ENZYMATIC RECYCLING OF POLYURETHANES BY A COMBINATION OF CUTINASES AND LIPASES Non-Final OA SOCIETE DES PRODUITS NESTLE S.A.
17609117 Encapsulated Reactive Components for Use in Activatable Materials Final Rejection Zephyros, Inc.
18420213 POLYMERIC CRYSTALLINE COMPOSITION, METHOD OF MANUFACTURING SAME AND USES THEREOF Non-Final OA Ariel Scientific Innovations Ltd.
18285731 A PROCESS FOR EXTRACTING POLYMERS FROM WASTE MATERIAL Non-Final OA Borealis AG
18038189 MONOMER COMPOSITION FOR SYNTHESIZING RECYCLED PLASTIC, PREPARATION METHOD THEREOF, AND RECYCLED PLASTIC, MOLDED PRODUCT USING THE SAME Non-Final OA LG CHEM, LTD.
18562886 Efficient Separation of Polycarbonate From Mixed Plastics Non-Final OA Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
17919866 RECYCLING SYSTEM FOR RECYCLING PLASTIC LAMINATE INTO RECYCLED MATERIALS, RECYCLING METHOD, AND LAMINATE SEPARATION AND RECOVERY METHOD Non-Final OA DIC Corporation
18038542 MODULAR TEXTILE RECYCLING SYSTEM AND PROCESS Final Rejection Ravel Holdings, Inc.

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Who Appears Before This Examiner

Top companies before this examiner

Law firms appearing most often

Frequently Asked Questions

What is examiner Christina H.W. Rosebach's allowance rate?

59.2% of resolved applications examined by Christina H.W. Rosebach were allowed (466 resolved cases), compared with 52.1% across Art Unit 1741 over the last five years.

Does an interview help with examiner Christina H.W. Rosebach?

This examiner's interview lift is -34.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Christina H.W. Rosebach take to allow a patent?

Applications allowed by Christina H.W. Rosebach took 1,144 days on average from filing to allowance.

Which art unit does examiner Christina H.W. Rosebach work in?

Christina H.W. Rosebach examines applications in Art Unit 1741 in Tech Center 1700 (Chemistry & Materials).

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month