Prosecution Insights
Last updated: October 01, 2026

Covestro AG

Technology areas: Biotechnology & Pharmaceuticals • Chemistry & Materials

44 pending office actions • 18 art units • 37 examiners • 0 of 44 (0%) have an AI response strategy ready • 61 patents granted in the last 365 days

Analysis

Covestro AG currently manages 43 pending office actions within the Chemistry & Materials technology area. These actions are distributed among 36 distinct examiners and 17 distinct art units. This shows that while most examiners handle only a case, there is some concentration of work within the 43 pending actions, reflecting a variety of chemical and material specializations across the portfolio.

LEONARD, MICHAEL L is the busiest examiner, managing 3 pending office actions. With 36 distinct examiners involved, the majority of examiners are handling a single matter. The 17 distinct art units reflect a variety of chemical and material specializations, requiring a prosecution strategy that can adapt to different standards. Practitioners should monitor the 3 pending office actions with LEONARD, MICHAEL L while also accounting for the 17 distinct art units involved in the portfolio to identify potential group-level trends.

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

Portfolio Summary

44
Total Pending OAs
31
Non-Final OAs
13
Final Rejections
0
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 9 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

5
Overdue
2
Due this week
0
Due this month
1
Due in next 60 days
1
Due later

Deadline Fire Line

Every pending office action with a known statutory deadline, placed on a days-until-due axis. Dots left of Today are overdue; the further right, the more runway. Cases that share a deadline window stack vertically. 9 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (5)Due ≤ 7 days (2)Due ≤ 60 days (1)Due later (1)

Case Difficulty Mix

Difficulty is derived from the rejection statutes on the most recent pending office action. §101-driven and multi-statute cases are graded Hard; §112-only and obviousness-type double-patenting cases are graded Easy; everything else is Medium. "Unknown" means we have not yet parsed a statute for that office action.

20
Hard (45%)
22
Medium (50%)
2
Easy (5%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other1 (2%)
§103 only20 (45%)
§102 only1 (2%)
§112 only1 (2%)
Double-patenting only1 (2%)
Double-patenting + other1 (2%)
Multi-statute (no §101)19 (43%)

Industry Mix

How the docket's pending cases split across USPTO tech-center bands.

29
Life Sciences
66% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
1
Mechanical / Eng
2% of docket
14
Business / Other
32% of docket

Time-on-OA Estimate

Manual office-action response work runs about 10 hours per case. The time-saved bands below show what IP Author's prosecution pipeline typically delivers — a conservative 20% on the low end, 35% in the middle, 50% on the high end.

440 h
Manual time on pending OAs
88 h
Time saved (low, 20%)
154 h
Time saved (mid, 35%)
3.9 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
LEONARD, MICHAEL L 3 63.7% +8.3%
KARST, DAVID THOMAS 3 64.7% +9.8%
RIETH, STEPHEN EDWARD 2 45.8% +32.9%
WITHERSPOON, SIKARL A 2 86.2% -20.1%
WALTERS JR, ROBERT S 2 51.5% +50.4%
BOWMAN, ANDREW J 1 65.9% +13.2%
MOORE, MARGARET G 1 68.0% +15.2%
MACHNESS, ARIELLA 1 61.9% +28.5%
ROBINSON, KRYSTAL 1 86.3% -5.1%
BOYD, JENNIFER A 1 32.3% +44.5%

Quick Wins (3)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 3 ordered by deadline are shown.

App #TitleExaminerDue in
18849652 EE Device Comprising a Composite Polycarbonate Element Having High CTI ROBINSON, KRYSTAL —
18270360 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF ALPHA-METHYLSTYRENE WITHERSPOON, SIKARL A —
18270384 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF BENZENE WITHERSPOON, SIKARL A —

Hard Cases (20)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18881765 METHOD FOR PRODUCING A COMPOSITE COMPONENT WITH A SUPPORT COMPRISING POLYCARBONATE OF A SPECIFIC OH CONTENT MACHNESS, ARIELLA 125d overdue
18270643 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF CUMENE KARST, DAVID THOMAS 28d overdue
18256961 PROCESS FOR PRODUCING PHOSGENE BY REACTION OF POLYCHLORINE ANIONS AND CARBON MONOXIDE CARR, DEBORAH D 2d overdue
18848976 HIGHLY BREATHABLE ELECTRONIC PATCH AND METHOD FOR PRODUCING SUCH PATCH BOYD, JENNIFER A —
18718517 MIXTURES OF GLUCOSE AND XYLOSE FOR THE FERMENTATIVE PREPARATION OF ORTHO-AMINOBENZOIC ACID STEADMAN, DAVID J —
18710344 METHOD OF RECOVERING RAW MATERIALS FROM POLYURETHANE PRODUCTS RIETH, STEPHEN EDWARD —
18696188 METHOD FOR PRODUCING PHOSGENE KELLY-O'NEILL, YOLANDA LYNNETTE —
18294588 Polycarbonate Compositions Having a High CTI CAI, WENWEN —

Interview Candidates (8)

Cases in front of an examiner whose interview lift is 10 percentage points or more — i.e. interviewed cases historically resolve more favorably than non-interviewed ones. The top 8 ordered by deadline are shown.

App #TitleExaminerDue in
18881765 METHOD FOR PRODUCING A COMPOSITE COMPONENT WITH A SUPPORT COMPRISING POLYCARBONATE OF A SPECIFIC OH CONTENT MACHNESS, ARIELLA 125d overdue
19469758 Use of Thermolatent Catalyst to Improve Properties of Single-Layer Polyurethane Coatings BOWMAN, ANDREW J —
18997571 ADHESIVE COMPOSITION, THE PREPARATION METHOD AND USE THEREOF MOORE, MARGARET G —
18848976 HIGHLY BREATHABLE ELECTRONIC PATCH AND METHOD FOR PRODUCING SUCH PATCH BOYD, JENNIFER A —
18710344 METHOD OF RECOVERING RAW MATERIALS FROM POLYURETHANE PRODUCTS RIETH, STEPHEN EDWARD —
18281105 Aging-Resistant Moisture-Curing Compositions RIETH, STEPHEN EDWARD —
19132423 PROCESS FOR PRODUCING LOW GLOSS COATING SURFACE BY RADIATION CURING WALTERS JR, ROBERT S —
19132429 PROCESS FOR PRODUCING LOW GLOSS COATING SURFACE BY RADIATION CURING WALTERS JR, ROBERT S —

Top Art Units

Art UnitApps
1765 4
1717 3
1763 3
1767 3
1692 3
1766 2
1743 1
3792 1
1772 1
1656 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19469758 Use of Thermolatent Catalyst to Improve Properties of Single-Layer Polyurethane Coatings BOWMAN, ANDREW J 1717 §102 Non-Final OA — Pending Sep 26, 2025
18997571 ADHESIVE COMPOSITION, THE PREPARATION METHOD AND USE THEREOF MOORE, MARGARET G 1765 §103 Non-Final OA — Pending Jan 22, 2025
18881765 METHOD FOR PRODUCING A COMPOSITE COMPONENT WITH A SUPPORT COMPRISING POLYCARBONATE OF A SPECIFIC OH CONTENT MACHNESS, ARIELLA 1743 §103§112 Non-Final OA 125d overdue Pending Jan 07, 2025
18849652 EE Device Comprising a Composite Polycarbonate Element Having High CTI ROBINSON, KRYSTAL — §112 Non-Final OA — Pending Sep 23, 2024
18848976 HIGHLY BREATHABLE ELECTRONIC PATCH AND METHOD FOR PRODUCING SUCH PATCH BOYD, JENNIFER A 3792 §102§103§112 Non-Final OA — Pending Sep 20, 2024
18722971 PYROLYSIS OF POLYCARBONATE-CONTAINING MATERIAL IN COMBINATION WITH PHOSPHORUS-CONTAINING ORGANIC COMPOUND FOR THE RECOVERY OF RAW MATERIALS MILLER, JONATHAN 1772 §103 Final Rejection 60d Pending Jun 21, 2024
18718517 MIXTURES OF GLUCOSE AND XYLOSE FOR THE FERMENTATIVE PREPARATION OF ORTHO-AMINOBENZOIC ACID STEADMAN, DAVID J 1656 §103§112Other Non-Final OA — Pending Jun 11, 2024
18710344 METHOD OF RECOVERING RAW MATERIALS FROM POLYURETHANE PRODUCTS RIETH, STEPHEN EDWARD — §103§112Other Non-Final OA — Pending May 15, 2024
18696188 METHOD FOR PRODUCING PHOSGENE KELLY-O'NEILL, YOLANDA LYNNETTE — §102§103 Non-Final OA — Pending Mar 27, 2024
18690619 Production of a Blocked Curing Agent Based on a Partly Organic-Based Polyisocyanate and Use as a 1K PUR Baking Enamel LEONARD, MICHAEL L — §103 Non-Final OA — Pending Mar 08, 2024
18294588 Polycarbonate Compositions Having a High CTI CAI, WENWEN — §103§112 Non-Final OA — Pending Feb 02, 2024
18292663 Method for Preparing a Polysiloxane-Polycarbonate Block Copolymer Using at Least One Special Condensation Reactor STONEHOCKER, VIRGINIA LEE — §102§103 Non-Final OA — Pending Jan 26, 2024
18576397 Method for Producing Monomers And/or Oligomers From a Polymer HUSON, MONICA ANNE — §102§103 Non-Final OA — Pending Jan 04, 2024
18572238 Coating Agents and Coatings That Are Obtainable Therefrom and Have Improved Resistance to Soiling and (Self-) Cleaning Properties LEONARD, MICHAEL L 1763 §102§103 Non-Final OA — Pending Dec 20, 2023
18571783 METHOD FOR PRODUCING ALKYLENE OXIDES BORALSKY, LUKE ALAN 1624 §102§103§112 Non-Final OA — Pending Dec 19, 2023
18567935 METHOD FOR CLEAVING POLYURETHANE PRODUCTS RAGHU, GANAPATHIRAM 1652 §103§112 Non-Final OA — Pending Dec 07, 2023
18565264 PROCESS FOR PREPARING ANILINE OR AN ANILINE DERIVATIVE PAGANO, ALEXANDER R — DP Non-Final OA — Pending Nov 29, 2023
18562639 POLYURETHANE COMPOSITE HESTER, HOLLEY GRACE — §102§103 Non-Final OA — Pending Nov 20, 2023
18561339 Reducing the Content of Specific Salts of Sulfonic Acid Derivatives, Sulfonamide Derivatives or Sulfonimide Derivatives in Waste Water DONAHUE, OLGA LUCIA — §101§103§112DP Non-Final OA — Pending Nov 16, 2023
18561580 Flame-Retardant Composition Containing 0.040 to 0.095 wt.% of a Flame Retardant ILLING, CAITLIN NORINE — §103DP Non-Final OA — Pending Nov 16, 2023
18561420 Flame-Retardant Composition Comprising 0.040% to 0.095% by Weight of a Flame Retardant ZHANG, RUIYUN — §103Other Non-Final OA — Pending Nov 16, 2023
18288112 PROCESS FOR PRODUCING POLYCARBONATE WITH IMPROVED SUSTAINABILITY LISTVOYB, GREGORY 1765 §103 Non-Final OA — Pending Oct 24, 2023
18285868 Process for Preparing Isohexide Diamines From Isohexide Diols SERGENT, RABON A 1765 §103§112 Non-Final OA — Pending Oct 06, 2023
18281105 Aging-Resistant Moisture-Curing Compositions RIETH, STEPHEN EDWARD 1759 §102§103§112 Non-Final OA — Pending Sep 08, 2023
18278482 Low Viscosity Catalyst Compositions for Producing Isocyanurate Polymers LEONARD, MICHAEL L 1763 §103 Final Rejection 4d overdue Pending Aug 23, 2023
18270643 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF CUMENE KARST, DAVID THOMAS 1767 §103§112Other Final Rejection 28d overdue Pending Jun 30, 2023
18270646 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF 2-METHYL BENZOFURAN KARST, DAVID THOMAS 1767 §103Other Final Rejection 28d overdue Pending Jun 30, 2023
18270360 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF ALPHA-METHYLSTYRENE WITHERSPOON, SIKARL A 1692 §103 Final Rejection — Pending Jun 29, 2023
18270384 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF BENZENE WITHERSPOON, SIKARL A 1692 §103 Final Rejection — Pending Jun 29, 2023
18270364 PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF ACETOPHENONE KARST, DAVID THOMAS 1767 §103Other Final Rejection — Pending Jun 29, 2023
18258231 TWO-COMPONENT COATING SYSTEM RICE, STEVEN 1787 §103 Final Rejection 6d Pending Jun 19, 2023
18256961 PROCESS FOR PRODUCING PHOSGENE BY REACTION OF POLYCHLORINE ANIONS AND CARBON MONOXIDE CARR, DEBORAH D 1691 §103§112 Non-Final OA 2d overdue Pending Jun 12, 2023
18037866 Flame-Retardant, Titanium Dioxide-Containing Polycarbonate Compositions WASHVILLE, JEFFREY D 1766 §103 Final Rejection 72d Pending May 19, 2023
18043762 MULTI-LAYER BODY FOR DIFFUSE TRANSILLUMINATION DILLON, DANIEL P 1783 §103 Final Rejection — Pending Mar 02, 2023
18000977 TWO-COMPONENT COATING COMPOSITION XU, JIANGTIAN 1762 §103 Non-Final OA 5d Pending Dec 07, 2022
16755226 METHODS FOR INCREASING THE TOLERANCE OF MICROBIAL CELLS TOWARDS ANTHRANILIC ACID BY LIMITING THE AMOUNT OF AMMONIA IN THE CULTURE MEDIUM TICHY, JENNIFER M.H. 1653 §103§112 Final Rejection — Pending Apr 10, 2020
19132423 PROCESS FOR PRODUCING LOW GLOSS COATING SURFACE BY RADIATION CURING WALTERS JR, ROBERT S 1717 §103 Final Rejection — Pending May 23, 2025
19132429 PROCESS FOR PRODUCING LOW GLOSS COATING SURFACE BY RADIATION CURING WALTERS JR, ROBERT S 1717 §103Other Non-Final OA — Pending May 23, 2025
18856999 EXTENDED WORK TIME POLYASPARTIC FLOOR COATING FORMULATIONS STRAH, ELI D — §103§112 Non-Final OA — Pending Oct 15, 2024
18387544 HCFO-CONTAINING POLYURETHANE FOAM-FORMING COMPOSITIONS, RELATED FOAMS AND METHODS FOR THEIR PRODUCTION BELUNIS, THOMAS JAMES — §103§112 Non-Final OA — Pending Nov 07, 2023
18262631 METHODS OF MANUFACTURING ONE-COMPONENT COATING COMPOSITIONS QIAO, HUIHONG 1763 §103 Non-Final OA — Pending Jul 24, 2023
18247810 Method for Producing Polyurethane Foams or Hydrogels by Employing Diol Containing Formulations COONEY, JOHN M 1765 §103 Non-Final OA — Pending Apr 04, 2023
17783790 METHOD FOR THE PRODUCTION OF A POLYESTER CARBONATE DESTEFANO, AUDRA JEAN 1766 §103 Non-Final OA — Pending Jun 09, 2022
17783367 METHOD FOR PRODUCING DI- AND POLYISOCYANATES OF THE DIPHENYLMETHANE SERIES HOU, FRANK S 1692 §103 Final Rejection — Pending Jun 08, 2022

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