Technology areas: Biotechnology & Pharmaceuticals • Chemistry & Materials
75 pending office actions • 37 art units • 65 examiners • 0 of 75 (0%) have an AI response strategy ready • 104 patents granted in the last 365 days
Evonik Operations GmbH has 76 pending office actions in Chemistry & Materials. The docket spans 65 distinct examiners and 40 art units, demonstrating broad distribution across the portfolio’s technical and examination assignments.
RIOJA, MELISSA A is the busiest examiner, with 4 pending matters. That relationship provides one identifiable point of concentration, while the remaining docket is spread across many other examiners.
The number of art units supports centralized monitoring of deadlines, claim issues, and response themes. Counsel should still tailor prosecution decisions to the examiner and technical unit assigned to each matter.
Based on the USPTO statutory response window for each pending office action. 17 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.
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. 17 of the docket's apps have a known mailing date.
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.
| Bucket | Cases |
|---|---|
| §101 only | 1 (1%) |
| §101 + other | 9 (12%) |
| §103 only | 20 (27%) |
| §102 only | 3 (4%) |
| §112 only | 4 (5%) |
| Double-patenting + other | 7 (9%) |
| Multi-statute (no §101) | 30 (40%) |
| No statute on record | 1 (1%) |
How the docket's pending cases split across USPTO tech-center bands.
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.
| Examiner | Apps on this docket | Allow rate | Interview lift |
|---|---|---|---|
| RIOJA, MELISSA A | 3 | 49.3% | +54.1% |
| BOYKIN, TERRESSA M | 3 | 89.5% | +8.4% |
| EPSTEIN, TODD MATTHEW | 2 | 60.8% | +43.6% |
| MERCIER, MELISSA S | 2 | 72.1% | +5.8% |
| KRYLOVA, IRINA | 2 | 36.6% | +48.3% |
| BOYLE, KARA BRADY | 2 | 61.8% | -10.0% |
| NGUYEN, HA S | 2 | 58.5% | -20.7% |
| STONEHOCKER, VIRGINIA LEE | 2 | 81.1% | +15.4% |
| YI, STELLA KIM | 1 | 71.2% | +28.4% |
| EIX, EMILY FAY | 1 | 45.7% | +76.0% |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 18575876 | PRODUCTION OF PU FOAMS USING RECYCLED POLYOLS | BOYKIN, TERRESSA M | — |
| 18575871 | RECOVERING DI- AND/OR POLYISOCYANATES FROM PU-DEPOLYMERISATION PROCESSES | BOYKIN, TERRESSA M | — |
| 18575870 | PRODUCTION OF PU FOAMS | BOYKIN, TERRESSA M | — |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 17627728 | MULTI-BLOCK SHAPE MEMORY BIORESORBABLE POLYMERS | NGUYEN, HA S | 35d overdue |
| 18025021 | SELECTIVE LASER SINTERING OF POLYMERIC POWDERS EMBEDDED WITH WATER-SOLUBLE FLOW ADDITIVES | SIDDIQUEE, TAMEEM | 17d overdue |
| 18331731 | ONE-COMPONENT SYSTEM COMPRISING BLOCKED POLYURETHANE PREPOLYMERS | STONEHOCKER, VIRGINIA LEE | 9d overdue |
| 17636546 | PRODUCTION OF RIGID POLYURETHANE FOAM | BOYLE, KARA BRADY | 16d |
| 18293016 | MICROORGANISMS DISPLAYING VIRAL DECOY RECEPTORS | OGUNBIYI, OLUWATOSIN A | 22d |
| 17995264 | PREPARATION FOR USE AS VASORELAXANT | LEE, HOI YAN NMN | 23d |
| 18004139 | MODIFIED SILICAS, PROCESS FOR PREPARATION THEREOF AND USE THEREOF | FORREST, MICHAEL | 27d |
| 17757528 | SORBITAN ESTERS AND PROCESS FOR ENZYMATICALLY PREPARING SAME | FERNANDEZ, SUSAN EMILY | 28d |
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 # | Title | Examiner | Due in |
|---|---|---|---|
| 18331731 | ONE-COMPONENT SYSTEM COMPRISING BLOCKED POLYURETHANE PREPOLYMERS | STONEHOCKER, VIRGINIA LEE | 9d overdue |
| 17414726 | PRODUCTION OF RIGID POLYURETHANE FOAM | KRYLOVA, IRINA | 15d |
| 18869988 | IMPROVED BIOTECHNOLOGICAL METHOD FOR PRODUCING GUANIDINO ACETIC ACID (GAA) BY USING NADH-DEPENDENT DEHYDROGENASES | EPSTEIN, TODD MATTHEW | 28d |
| 19147761 | METHOD OF AUTOMATED PROCESSING OF HIGH-TEMPERATURE-STABLE, CLOSED-PORE, RIGID HARD FOAMS | YI, STELLA KIM | — |
| 19116456 | PROBIOTIC COMPOSITION FOR THE TREATMENT OF MALNUTRITION | EIX, EMILY FAY | — |
| 18709975 | FOAMED ARTICLE AND METHOD FOR PREPARING THE SAME | KRYLOVA, IRINA | — |
| 18641381 | FOAM STABILIZERS FOR PHENOLIC FOAM | RIOJA, MELISSA A | — |
| 18575863 | PRODUCTION OF RIGID POLYURETHANE OR POLYISOCYANURATE FOAM | RIOJA, MELISSA A | — |
| Art Unit | Apps |
|---|---|
| 1765 | 9 |
| 1764 | 7 |
| 1766 | 6 |
| 1762 | 5 |
| 1652 | 3 |
| 1613 | 3 |
| 1742 | 2 |
| 1615 | 2 |
| 1633 | 2 |
| 1767 | 2 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19147761 | METHOD OF AUTOMATED PROCESSING OF HIGH-TEMPERATURE-STABLE, CLOSED-PORE, RIGID HARD FOAMS | YI, STELLA KIM | 1742 | §102 | Non-Final OA | — | Pending | Jul 14, 2025 |
| 19116456 | PROBIOTIC COMPOSITION FOR THE TREATMENT OF MALNUTRITION | EIX, EMILY FAY | 1653 | §101§102§112DP | Non-Final OA | — | Pending | Mar 28, 2025 |
| 18870565 | DIGITAL MONITORING OF PATHOGEN LOAD IN LIVESTOCK | EZEWOKO, MICHAEL I | 3682 | §101§103 | Non-Final OA | 56d | Pending | Nov 29, 2024 |
| 18869988 | IMPROVED BIOTECHNOLOGICAL METHOD FOR PRODUCING GUANIDINO ACETIC ACID (GAA) BY USING NADH-DEPENDENT DEHYDROGENASES | EPSTEIN, TODD MATTHEW | 1652 | §103Other | Non-Final OA | 28d | Pending | Nov 27, 2024 |
| 18870159 | PROCESS FOR PRODUCING MULTIDIMENSIONAL RIGID FOAM PARTS BY MEANS OF JIGSAW PUZZLE-PIECE CONNECTION | KIM, YUNJU | 1742 | §103 | Final Rejection | — | Pending | Nov 27, 2024 |
| 18861952 | A METHOD OF CELL REJUVENATION | KANE, TREVOR LOGAN | 1657 | §102§103 | Non-Final OA | — | Pending | Oct 31, 2024 |
| 18854570 | PROCESS FOR THE FERMENTATIVE PRODUCTION OF A BIOSURFACTANT | FAN, LYNN Y | — | §102§103§112 | Non-Final OA | — | Pending | Oct 07, 2024 |
| 18846094 | PRE-FUNCTIONALIZED HARD SHELL CAPSULE WITH ACCELERATED DRUG RELEASE AT PH VALUE 5 TO 5.5 | MERCIER, MELISSA S | 1615 | §103DP | Non-Final OA | — | Pending | Sep 11, 2024 |
| 18842083 | PROCESS TO ENHANCE VIRAL VECTOR PRODUCTION IN CELL-CULTURE USING GLYCYL-GLUTAMINE | LARA, CAROLINE MONSERRAT | 1633 | §102§103 | Non-Final OA | — | Pending | Aug 28, 2024 |
| 18839767 | SPONGES BASED ON COLLAGEN-LIKE PROTEINS | ARNOLD, ERNST V | 1613 | §103 | Final Rejection | — | Pending | Aug 20, 2024 |
| 18839546 | BIO BASED COMPOSITION | ASDJODI, MOHAMMADREZA | 1767 | §102§103 | Non-Final OA | — | Pending | Aug 19, 2024 |
| 18838764 | MICROORGANISMS WITH REDUCED COMPETENCE | RAHMAN, MASUDUR | 1633 | §101§102§103§112 | Non-Final OA | — | Pending | Aug 15, 2024 |
| 18715265 | IMPROVED ELECTRODE MATERIAL FOR PRINTING ORGANIC POLYMER BATTERIES | SHEWAREGED, BETELHEM | 1785 | §102§103 | Non-Final OA | — | Pending | Jul 05, 2024 |
| 18750658 | METHOD FOR GAS SEPARATION BY MEMBRANES | HOPKINS, ROBERT A | 1776 | §102§103§112 | Non-Final OA | — | Pending | Jun 21, 2024 |
| 18709975 | FOAMED ARTICLE AND METHOD FOR PREPARING THE SAME | KRYLOVA, IRINA | 1764 | §102§103§112 | Non-Final OA | — | Pending | May 14, 2024 |
| 18706399 | NEW METHOD FOR RECYCLING OF POLYURETHANE | RIETH, STEPHEN EDWARD | 1765 | §103§112 | Non-Final OA | — | Pending | May 01, 2024 |
| 18641381 | FOAM STABILIZERS FOR PHENOLIC FOAM | RIOJA, MELISSA A | 1764 | §103§112 | Non-Final OA | — | Pending | Apr 21, 2024 |
| 18699989 | SILANE-AZODICARBONAMIDE MIXTURES, PROCESS FOR PRODUCTION THEREOF AND USE THEREOF | BLEDSOE, JOSHUA CALEB | 1762 | §103§112 | Non-Final OA | — | Pending | Apr 10, 2024 |
| 18614689 | DISPERSANTS FOR SOLID-CONTAINING PHENOLIC FOAMS | BELUNIS, THOMAS JAMES | 1767 | §102§103§112 | Non-Final OA | — | Pending | Mar 24, 2024 |
| 18689909 | COMB-BRANCHED POLYMER/SILICA NANOPARTICLES HYBRID POLYMER ELECTROLYTES FOR SOLID-STATE LITHIUM METAL SECONDARY BATTERIES | COCHENOUR, ZACKARY RICHARD | 1752 | §103 | Non-Final OA | — | Pending | Mar 07, 2024 |
| 18590673 | COMPOSITION AND THE USE THEREOF AS JOINT COMPOUND | EGWIM, KELECHI CHIDI | 1762 | §112 | Non-Final OA | — | Pending | Feb 28, 2024 |
| 18588296 | RECOVERY OF SILOXANE CYCLES | SAWYER, JENNIFER C | 1691 | §103§112DP | Non-Final OA | — | Pending | Feb 27, 2024 |
| 18683134 | DRIED BIOLOGICAL COMPOSITIONS AND METHODS THEREOF | MI, QIUWEN | 1655 | §101§102§112 | Non-Final OA | — | Pending | Feb 12, 2024 |
| 18293093 | FRACTURE-RESISTANT PARTITION COMPRISING SOLID ELECTROLYTE CERAMICS FOR ELECTROLYTIC CELLS | RIPA, BRYAN D | 1794 | §103§112DP | Non-Final OA | — | Pending | Jan 29, 2024 |
| 18293016 | MICROORGANISMS DISPLAYING VIRAL DECOY RECEPTORS | OGUNBIYI, OLUWATOSIN A | 1645 | §101 | Non-Final OA | 22d | Pending | Jan 29, 2024 |
| 18577357 | COMPOSITION COMPRISING A (METH)ACRYLATE COPOLYMER, AN ALKALI OR AMMONIUM SALT OF A SATURATED ALIPHATIC MONOCARBOXYLIC ACID AND SPECIFIC GLIDANTS | FUBARA, BLESSING M | 1613 | §103 | Non-Final OA | — | Pending | Jan 08, 2024 |
| 18575876 | PRODUCTION OF PU FOAMS USING RECYCLED POLYOLS | BOYKIN, TERRESSA M | 1765 | §103Other | Non-Final OA | — | Pending | Jan 01, 2024 |
| 18575878 | HYDROGENATION OF AROMATIC AMINES FROM PU DECOMPOSITION PROCESSES | DOLETSKI, BLAINE G | 1692 | §103§112DP | Final Rejection | — | Pending | Jan 01, 2024 |
| 18575871 | RECOVERING DI- AND/OR POLYISOCYANATES FROM PU-DEPOLYMERISATION PROCESSES | BOYKIN, TERRESSA M | 1765 | §103Other | Non-Final OA | — | Pending | Jan 01, 2024 |
| 18575863 | PRODUCTION OF RIGID POLYURETHANE OR POLYISOCYANURATE FOAM | RIOJA, MELISSA A | 1764 | §102§103§112Other | Non-Final OA | — | Pending | Jan 01, 2024 |
| 18575875 | POLYALKYLENE OXIDES AS DISPERSANT FOR GRAPHENE MATERIAL | NASSIRI MOTLAGH, ANITA | 1734 | §102§103§112 | Non-Final OA | — | Pending | Jan 01, 2024 |
| 18575870 | PRODUCTION OF PU FOAMS | BOYKIN, TERRESSA M | 1765 | §103Other | Non-Final OA | — | Pending | Jan 01, 2024 |
| 18575612 | SILANE MODIFIED ALIPHATIC POLYUREA | LEONARD, MICHAEL L | 1763 | §102§103Other | Final Rejection | — | Pending | Dec 29, 2023 |
| 18569398 | SHAPED FLEXIBLE PU FOAM ARTICLES | BOYLE, KARA BRADY | 1766 | §102§103§112 | Non-Final OA | — | Pending | Dec 12, 2023 |
| 18567296 | SEMICONTINUOUS SUSPENSION POLYMERIZATION OF POLYACRYLATES IN A CAPILLARY REACTOR | LEE, RIP A | 1762 | — | Non-Final OA | — | Pending | Dec 05, 2023 |
| 18564035 | HYDROGENATED POLYETHER-MODIFIED AMINO-FUNCTIONAL POLYBUTADIENES AND PROCESSES FOR PREPARATION THEREOF | LENIHAN, JEFFREY S | 1765 | §103§112DP | Non-Final OA | — | Pending | Nov 24, 2023 |
| 18563768 | ENVIRONMENTALLY FRIENDLY COMPOSITION FOR TREATING MINERAL SUBSTRATES | ZIMMER, MARC S | 1765 | §102 | Final Rejection | — | Pending | Nov 22, 2023 |
| 18563327 | HARD-SHELL CAPSULE WITH INFLUX PREVENTION OF GASTRIC FLUIDS | MERCIER, MELISSA S | 1615 | §103DP | Non-Final OA | 42d | Pending | Nov 21, 2023 |
| 18558976 | COMPOSITIONS CONTAINING AT LEAST ONE BIOSURFACTANT AND AT LEAST ONE SULFONIC OR SULFINIC ACID DERIVATIVE | OLSEN, KAELEIGH ELIZABETH | 1619 | §103 | Non-Final OA | — | Pending | Nov 03, 2023 |
| 18557370 | DESFERRIOXAMINES AND COMPOSITION CONTAINING UV LIGHT PROTECTION FILTERS | KIM, DANIELLE A | 1613 | §103§112 | Non-Final OA | — | Pending | Oct 26, 2023 |
| 18556282 | POLYMER COMPRISING LONG CHAIN HYDROXY ACIDS | NGUYEN, HA S | 1766 | §102§103§112 | Non-Final OA | — | Pending | Oct 19, 2023 |
| 18287607 | AMIDOAMINE COMPOSITION AND ADHESIVE COMPOSITION CONTAINING THE SAME | DU, SURBHI M | 1765 | §103 | Non-Final OA | — | Pending | Oct 19, 2023 |
| 18447558 | PRODUCTION OF ALKOXYSILOXANES | STONEHOCKER, VIRGINIA LEE | 1766 | §102§103§112 | Non-Final OA | — | Pending | Aug 10, 2023 |
| 18261337 | SILICONE URETHANE (METH)ACRYLATES AND THEIR USE IN 3D PRINTING RESINS AND COATING COMPOSITIONS | YOON, TAE H | 1762 | §112 | Final Rejection | — | Pending | Jul 13, 2023 |
| 18331731 | ONE-COMPONENT SYSTEM COMPRISING BLOCKED POLYURETHANE PREPOLYMERS | STONEHOCKER, VIRGINIA LEE | 1766 | §102§103 | Final Rejection | 9d overdue | Pending | Jun 08, 2023 |
| 18265430 | PRODUCTION OF POLYURETHANE FOAM | RIOJA, MELISSA A | 1764 | §112 | Non-Final OA | — | Pending | Jun 05, 2023 |
| 18265029 | A METHOD FOR CLASSIFYING THE GUT INFLAMMATION STATUS IN AVIAN SPECIES | MYERS, CARLA J | 1682 | §101§112 | Final Rejection | — | Pending | Jun 02, 2023 |
| 18255409 | ADHESION OF BLOWING AGENT-CONTAINING PARTICLES BASED ON POLYIMIDES OR POLYACRYLATES | COONEY, JOHN M | 1765 | §103§112 | Non-Final OA | — | Pending | Jun 01, 2023 |
| 18314808 | COMPOSITION FOR PENETRATING SUGAR BASED DELIVERY SYSTEM | BROWE, DAVID | 1617 | §103§112 | Final Rejection | 30d | Pending | May 09, 2023 |
| 18129547 | SOLUTIONS OF AMINES IN FUNCTIONAL AND NON-FUNCTIONAL RESINS | BROOKS, KREGG T | 1764 | §103§112 | Final Rejection | — | Pending | Mar 31, 2023 |
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Start Free TrialEvonik Operations GmbH has 75 pending office actions as of October 2026, spread across 37 art units and 65 examiners.
Melissa A Rioja has the most, with 3 of Evonik Operations GmbH's pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.
