Prosecution Insights
Last updated: October 25, 2026

Wacker Chemie AG

Technology areas: Biotechnology & Pharmaceuticals • Chemistry & Materials

32 pending office actions • 17 art units • 28 examiners • 0 of 32 (0%) have an AI response strategy ready • 36 patents granted in the last 365 days

Analysis

Wacker Chemie AG maintains a robust portfolio with 30 pending office actions concentrated in the Chemistry & Materials technology area. These actions are spread across 28 distinct examiners and 17 distinct art units, reflecting a broad and complex research and development footprint. The high number of 17 distinct art units suggests that the company's chemical innovations span a wide variety of specialized classifications within the patent office. The busiest examiner, STEADMAN, DAVID J, is currently handling 2 pending office actions, which is a low concentration for a portfolio of this size.

This distribution indicates that despite the volume of 30 pending office actions, the workload is highly decentralized, with no single examiner controlling a large portion of the portfolio. For a practitioner, this distribution across 28 distinct examiners means that prosecution outcomes will likely vary based on individual examiner styles rather than a unified art unit trend. Managing the portfolio across 17 distinct art units requires a versatile strategy to address the diverse technical requirements of each group. The lack of concentration under STEADMAN, DAVID J or any other single examiner means that practitioners must prepare for many different sets of examiner preferences, making it difficult to apply a single successful argument across the entire portfolio. With 2 pending office actions being the maximum for any one examiner, the prosecution effort remains highly fragmented.

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

Portfolio Summary

32
Total Pending OAs
20
Non-Final OAs
11
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 6 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

5
Overdue
1
Due this week
0
Due this month
0
Due in next 60 days
0
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. 6 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (5)Due ≤ 7 days (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.

19
Hard (59%)
8
Medium (25%)
5
Easy (16%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only7 (22%)
§112 only4 (12%)
Double-patenting only1 (3%)
Double-patenting + other1 (3%)
Multi-statute (no §101)19 (59%)

Industry Mix

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

31
Life Sciences
97% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
1
Mechanical / Eng
3% of docket
0
Business / Other
0% 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.

320 h
Manual time on pending OAs
64 h
Time saved (low, 20%)
112 h
Time saved (mid, 35%)
2.8 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
STEADMAN, DAVID J 2 57.7% +29.7%
MARTIN, RACHEL E 2 54.2% +54.0%
ZIMMER, MARC S 2 79.4% +16.1%
PAGANO, ALEXANDER R 2 78.7% +11.4%
MCAVOY, ELLEN M 1 72.9% +8.9%
KRUER, KEVIN R 1 26.6% +29.5%
DOUYON, LORNA M 1 56.8% +72.1%
SINGH, SATYENDRA K 1 61.5% +67.9%
WITHERSPOON, SIKARL A 1 86.3% -20.1%
BAEK, BONG-SOOK 1 41.6% +69.9%

Quick Wins (1)

Cases in front of an examiner with an allow rate of 80%+ where the difficulty is Easy or Medium. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18710199 PROCESS FOR PREPARING ISOCYANATOORGANOSILANES WITHERSPOON, SIKARL A —

Hard Cases (19)

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
17914178 COMPOSITIONS WHICH HAVE POLYESTER-POLYSILOXANE COPOLYMERS DARLING, DEVIN MITCHELL 147d overdue
18267785 FOAM CONTROL COMPOSITION BOYER, CHARLES I 51d overdue
18844412 A COMPOSITION KRUER, KEVIN R —
18841441 IMPROVED CYSTEINE-PRODUCING STRAINS STEADMAN, DAVID J —
18840103 DEFOAMER FORMULATIONS CONTAINING TRIACYLGLYCERIDES DOUYON, LORNA M —
18696698 SILYLBENZOPINACOL RADICAL INITIATORS BONAPARTE, AMY C —
18692350 CROSSLINKABLE MASSES BASED ON ORGANYLOXY-GROUP-CONTAINING ORGANOPOLYSILOXANES ZIMMER, MARC S —
18686454 ELECTRICALLY CONDUCTIVE ELASTOMERIC PRINTING INK FOR CONTACTLESS PRINTING PROCESSES NGUYEN, TRI V —

Interview Candidates (12)

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
18032823 POLYMERIC ALKYL SILICATES PAGANO, ALEXANDER R 15d overdue
18864602 PROCESS FOR PRODUCING L-CYSTEIC ACID AND USE THEREOF STEADMAN, DAVID J —
18844412 A COMPOSITION KRUER, KEVIN R —
18841441 IMPROVED CYSTEINE-PRODUCING STRAINS STEADMAN, DAVID J —
18840103 DEFOAMER FORMULATIONS CONTAINING TRIACYLGLYCERIDES DOUYON, LORNA M —
17632936 BACTERIAL STRAIN FOR RELEASING A RECOMBINANT PROTEIN IN A FERMENTATION METHOD MARTIN, RACHEL E —
18712705 PROCESS FOR PRODUCING TAURINE SINGH, SATYENDRA K —
18700760 ANTIMICROBIAL COMPOSITION AND METHOD FOR MAKING THE SAME BAEK, BONG-SOOK —

Top Art Units

Art UnitApps
1765 5
1692 4
1763 4
1656 2
1761 2
1652 2
1657 2
1764 2
1771 1
3635 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18992222 PROCESS FOR BASE-CATALYZED REACTION OF SILICONES WITH HYDROTHERMAL OR SUPERCRITICAL WATER MCAVOY, ELLEN M 1771 §112 Non-Final OA — Pending Jan 08, 2025
18864602 PROCESS FOR PRODUCING L-CYSTEIC ACID AND USE THEREOF STEADMAN, DAVID J 1656 §102§103§112DP Non-Final OA — Pending Nov 11, 2024
18844412 A COMPOSITION KRUER, KEVIN R 3635 §102§103 Non-Final OA — Pending Sep 06, 2024
18841441 IMPROVED CYSTEINE-PRODUCING STRAINS STEADMAN, DAVID J 1656 §102§103§112 Non-Final OA — Pending Aug 26, 2024
18840103 DEFOAMER FORMULATIONS CONTAINING TRIACYLGLYCERIDES DOUYON, LORNA M 1761 §103§112 Non-Final OA — Pending Aug 21, 2024
17632936 BACTERIAL STRAIN FOR RELEASING A RECOMBINANT PROTEIN IN A FERMENTATION METHOD MARTIN, RACHEL E 1652 §112 Non-Final OA — Pending Jun 06, 2024
18712705 PROCESS FOR PRODUCING TAURINE SINGH, SATYENDRA K 1657 DP Non-Final OA — Pending May 23, 2024
18710199 PROCESS FOR PREPARING ISOCYANATOORGANOSILANES WITHERSPOON, SIKARL A 1692 §103 Non-Final OA — Pending May 15, 2024
18700760 ANTIMICROBIAL COMPOSITION AND METHOD FOR MAKING THE SAME BAEK, BONG-SOOK 1611 §103 Final Rejection — Pending Apr 12, 2024
18696698 SILYLBENZOPINACOL RADICAL INITIATORS BONAPARTE, AMY C 1692 §102§103 Non-Final OA — Pending Mar 28, 2024
18692350 CROSSLINKABLE MASSES BASED ON ORGANYLOXY-GROUP-CONTAINING ORGANOPOLYSILOXANES ZIMMER, MARC S 1765 §102§103§112 Non-Final OA — Pending Mar 15, 2024
18686454 ELECTRICALLY CONDUCTIVE ELASTOMERIC PRINTING INK FOR CONTACTLESS PRINTING PROCESSES NGUYEN, TRI V 1764 §103§112 Final Rejection — Pending Feb 26, 2024
18294548 METAL-PLATED LAMINATES CONTAINING POLYORGANOSILOXANES SERGENT, RABON A 1765 §103§112 Non-Final OA — Pending Feb 02, 2024
18578733 DEFOAMING COMPOSITIONS WITH POLYDIMETHYLSILOXANES, ORGANOPOLYSILOXANE RESINS, ALKYL ETHERS AND WITHOUT 2,2,4-TRIMETHYL-1,3-DIISOBUTYRYLOXYPENTANE PHILLIPS, SAVANNAH GRACE 1763 §103§112 Non-Final OA — Pending Jan 12, 2024
18578019 USE OF FILM-FORMING ORGANOPOLYSILOXANES FOR REDUCING THE MICROFIBER RELEASE OF TEXTILES COHEN, STEFANIE J 1732 §103§112 Non-Final OA — Pending Jan 10, 2024
18571813 ORGANYLOXYSILYL-TERMINATED POLYMERS ON THE BASIS OF 1,3-DIOXOLANE COPOLYMER BUILDING BLOCKS PEPITONE, MICHAEL F 1767 §112 Non-Final OA — Pending Dec 19, 2023
18569265 HYDROPHOBIZING AND STRENGTHENING AGENT FOR CARPET FIBER BOARDS STRAH, ELI D 1782 §103§112 Final Rejection — Pending Dec 12, 2023
18284303 STARCH HYBRID COPOLYMERS BHUSHAN, KUMAR R 1766 §103§112 Non-Final OA — Pending Sep 27, 2023
18283028 PROCESS OF REACTING SILICONE WITH HYDROTHERMAL OR SUPERCRITICAL WATER WOODWARD, ANA LUCRECIA 1765 §102§103 Final Rejection — Pending Sep 20, 2023
18280693 METHOD FOR PRODUCING ORGANOPOLYSILOXANES WITH UNSATURATED GROUPS PAGANO, ALEXANDER R 1692 §102§103 Non-Final OA — Pending Sep 07, 2023
18277398 METHOD FOR PRODUCING A HYDROXYTYROSOL MARTIN, RACHEL E 1657 §103 Non-Final OA — Pending Aug 16, 2023
18277498 ADDITIVE-CONTAINING BIOPOLYMER COMPOSITIONS NERANGIS, VICKEY M 1763 §103 Final Rejection — Pending Aug 16, 2023
18267785 FOAM CONTROL COMPOSITION BOYER, CHARLES I 1761 §103§112Other Final Rejection 51d overdue Pending Jun 16, 2023
18265692 AN AQUEOUS POLYMER DISPERSION EGWIM, KELECHI CHIDI 1762 §102§103§112 Final Rejection — Pending Jun 07, 2023
18038449 METHOD FOR PRODUCING CROSS-LINKABLE MATERIALS BASED ON ORGANYLOXYSILANE-TERMINATED POLYMERS LEONARD, MICHAEL L 1763 §103 Final Rejection 79d overdue Pending May 24, 2023
18035610 METHOD FOR ENZYMATIC OXIDATION OF SULFINIC ACIDS TO SULFONIC ACIDS RAMIREZ, DELIA M 1652 §103§112 Non-Final OA — Pending May 05, 2023
18032823 POLYMERIC ALKYL SILICATES PAGANO, ALEXANDER R 1692 §112 Final Rejection 15d overdue Pending Apr 20, 2023
18023748 CROSS-LINKABLE COMPOSITIONS BASED ON ORGANOSILICON COMPOUNDS BERRO, ADAM JOSEPH 1765 §103 Non-Final OA 5d Pending Feb 28, 2023
18019845 SILICON CARBON COMPOSITE PARTICLES OTERO, KENNETH MAX 1725 §103 Final Rejection 60d overdue Pending Feb 06, 2023
17922033 Polyvinyl-alcohol-stabilized (meth)acrylic acid ester polymers USELDING, JOHN E 1763 §103§112 Non-Final OA — Pending Nov 02, 2022
17914178 COMPOSITIONS WHICH HAVE POLYESTER-POLYSILOXANE COPOLYMERS DARLING, DEVIN MITCHELL 1764 §102§103 Non-Final OA 147d overdue Pending Sep 23, 2022
17780548 METHOD FOR PRODUCING ORGANYLOXYSILANE-TERMINATED POLYMERS ZIMMER, MARC S 1765 §102§103§112 Final Rejection — Pending May 27, 2022

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Frequently Asked Questions

How many pending USPTO office actions does Wacker Chemie AG have?

Wacker Chemie AG has 32 pending office actions as of October 2026, spread across 17 art units and 28 examiners.

Which USPTO examiner handles the most Wacker Chemie AG applications?

David J Steadman has the most, with 2 of Wacker Chemie AG's pending office actions.

What technology area are Wacker Chemie AG's patent applications in?

Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.

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