Prosecution Insights
Prosecution Insights
Technology area: Chemistry & Materials
27 pending office actions • 11 art units • 20 examiners • 0 of 27 (0%) have an AI response strategy ready • 14 patents granted in the last 365 days
The Chemours Company FC LLC has 27 pending office actions in Chemistry & Materials. The matters are assigned to 20 distinct examiners across 11 distinct art units, showing a portfolio that spans multiple examination groups and does not follow a single examiner path. The spread calls for coordinated docket oversight alongside technical segmentation, particularly when similar chemical disclosures receive different examination treatment.
WALKER, AJA ARYANNA is the busiest examiner, with 4 pending matters. This concentration creates a useful internal reference set for reviewing recurring objections, cited references, and amendment outcomes, but it does not represent the full portfolio. Counsel should distinguish examiner-specific practice from art-unit tendencies and avoid transferring a successful response unchanged to matters handled elsewhere. A structured comparison of the eleven art units can help identify which issues are genuinely portfolio-wide and which arise from a particular technical grouping.
Based on the USPTO statutory response window for each pending office action. 4 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. 4 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 |
|---|---|
| §103 only | 11 (41%) |
| §102 only | 1 (4%) |
| §112 only | 1 (4%) |
| Multi-statute (no §101) | 13 (48%) |
| No statute on record | 1 (4%) |
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 |
|---|---|---|---|
| WALKER, AJA ARYANNA | 4 | 66.7% | +42.9% |
| DIAZ, MATTHEW R | 3 | 54.1% | +42.9% |
| DIGGS, TANISHA | 2 | 55.1% | +54.1% |
| CAI, JIAJIA JANIE | 2 | 29.1% | +20.7% |
| KING, BRIAN M | 1 | 70.3% | +23.7% |
| SULLENS, TAVIA L | 1 | 49.8% | +46.9% |
| CRAWFORD, GENE O | 1 | 45.9% | +5.7% |
| BAHTA, MEDHANIT W | 1 | 80.6% | +27.8% |
| KAUCHER, MARK S | 1 | 72.5% | +14.0% |
| GOLOBOY, JAMES C | 1 | 63.7% | +8.7% |
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 |
|---|---|---|---|
| 18961999 | COMPOSITIONS AND PROCESSES FOR PRODUCING CHLOROFLUOROALKENES | DIGGS, TANISHA | — |
| 18867370 | SYSTEMS, EQUIPMENT AND METHODS FOR STABILIZING HYDROFLUOROOLEFINS IN REFRIGERANT SYSTEMS | SULLENS, TAVIA L | — |
| 18843093 | HYDROCARBON ADDITIVES FOR 1234YF COMPOSITION AND METHODS FOR THEIR PRODUCTION, STORAGE AND USAGE | WALKER, AJA ARYANNA | — |
| 18786089 | CONVERSION OF CHLOROFLUOROROPANES AND CHLOROFLUROPROPENES TO MORE DESIRABLE FLUOROPROPANES AND FLUOROROPENES | BAHTA, MEDHANIT W | — |
| 18708230 | AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS OF PERFLUOROHEPTENE AND FLUOROETHERS AND USES THEREOF | DIAZ, MATTHEW R | — |
| 18627510 | REFRIGERANT COMPOSITIONS COMPRISING Z-1,3,3,3-TETRAFLUOROPROPENE, METHODS OF MAKING SAME, AND USES THEREOF | WALKER, AJA ARYANNA | — |
| 18686470 | TERTIARY AZEOTROPE AND AZEOTROPE-LIKE COMPOSITIONS FOR SOLVENT AND CLEANING APPLICATIONS | DIGGS, TANISHA | — |
| 18682167 | TREATED INORGANIC PARTICLES FOR MODIFYING POLYMER CRYSTALLINITY | GOLOBOY, JAMES C | — |
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 |
|---|---|---|---|
| 18371072 | AZEOTROPIC COMPOSITIONS OF HFO-1234YF AND HYDROCARBONS | DIAZ, MATTHEW R | 27d |
| 19091951 | METHOD FOR EXCHANGING HEAT IN VAPOR COMPRESSION HEAT TRANSFER SYSTEMS AND VAPOR COMPRESSION HEAT TRANSFER SYSTEMS COMPRISING INTERMEDIATE HEAT EXCHANGERS WITH DUAL-ROW EVAPORATORS OR CONDENSERS | KING, BRIAN M | — |
| 18961999 | COMPOSITIONS AND PROCESSES FOR PRODUCING CHLOROFLUOROALKENES | DIGGS, TANISHA | — |
| 18867370 | SYSTEMS, EQUIPMENT AND METHODS FOR STABILIZING HYDROFLUOROOLEFINS IN REFRIGERANT SYSTEMS | SULLENS, TAVIA L | — |
| 18843093 | HYDROCARBON ADDITIVES FOR 1234YF COMPOSITION AND METHODS FOR THEIR PRODUCTION, STORAGE AND USAGE | WALKER, AJA ARYANNA | — |
| 18786089 | CONVERSION OF CHLOROFLUOROROPANES AND CHLOROFLUROPROPENES TO MORE DESIRABLE FLUOROPROPANES AND FLUOROROPENES | BAHTA, MEDHANIT W | — |
| 18708230 | AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS OF PERFLUOROHEPTENE AND FLUOROETHERS AND USES THEREOF | DIAZ, MATTHEW R | — |
| 18627510 | REFRIGERANT COMPOSITIONS COMPRISING Z-1,3,3,3-TETRAFLUOROPROPENE, METHODS OF MAKING SAME, AND USES THEREOF | WALKER, AJA ARYANNA | — |
| Art Unit | Apps |
|---|---|
| 1761 | 10 |
| 3763 | 3 |
| 1692 | 2 |
| 1764 | 2 |
| 1771 | 2 |
| 3651 | 1 |
| 1767 | 1 |
| 1766 | 1 |
| 1789 | 1 |
| 1725 | 1 |
| App # | Title | Examiner | Art Unit | Statutes | Status | Due in | AI | Filed |
|---|---|---|---|---|---|---|---|---|
| 19091951 | METHOD FOR EXCHANGING HEAT IN VAPOR COMPRESSION HEAT TRANSFER SYSTEMS AND VAPOR COMPRESSION HEAT TRANSFER SYSTEMS COMPRISING INTERMEDIATE HEAT EXCHANGERS WITH DUAL-ROW EVAPORATORS OR CONDENSERS | KING, BRIAN M | 3763 | §112Other | Non-Final OA | — | Pending | Mar 27, 2025 |
| 18961999 | COMPOSITIONS AND PROCESSES FOR PRODUCING CHLOROFLUOROALKENES | DIGGS, TANISHA | 1761 | §103§112 | Non-Final OA | — | Pending | Nov 27, 2024 |
| 18867370 | SYSTEMS, EQUIPMENT AND METHODS FOR STABILIZING HYDROFLUOROOLEFINS IN REFRIGERANT SYSTEMS | SULLENS, TAVIA L | 3763 | §102§112 | Non-Final OA | — | Pending | Nov 19, 2024 |
| 18864044 | SYSTEM FOR HANDLING POWDERED MATERIALS | CRAWFORD, GENE O | 3651 | §103 | Non-Final OA | — | Pending | Nov 08, 2024 |
| 18843093 | HYDROCARBON ADDITIVES FOR 1234YF COMPOSITION AND METHODS FOR THEIR PRODUCTION, STORAGE AND USAGE | WALKER, AJA ARYANNA | 1761 | §102§103 | Non-Final OA | — | Pending | Aug 30, 2024 |
| 18786089 | CONVERSION OF CHLOROFLUOROROPANES AND CHLOROFLUROPROPENES TO MORE DESIRABLE FLUOROPROPANES AND FLUOROROPENES | BAHTA, MEDHANIT W | 1692 | §102§112 | Non-Final OA | — | Pending | Jul 26, 2024 |
| 18708230 | AZEOTROPIC AND AZEOTROPE-LIKE COMPOSITIONS OF PERFLUOROHEPTENE AND FLUOROETHERS AND USES THEREOF | DIAZ, MATTHEW R | 1761 | §102§103 | Final Rejection | — | Pending | May 08, 2024 |
| 18627510 | REFRIGERANT COMPOSITIONS COMPRISING Z-1,3,3,3-TETRAFLUOROPROPENE, METHODS OF MAKING SAME, AND USES THEREOF | WALKER, AJA ARYANNA | 1761 | §102§103§112 | Non-Final OA | — | Pending | Apr 05, 2024 |
| 18697520 | COMPOSITIONS OF HFO-1234YF, HFC-32, HFC-152A, AND HYDROCARBONS AND SYSTEMS FOR USING THE COMPOSITIONS | WALKER, AJA ARYANNA | 1761 | §103 | Non-Final OA | — | Pending | Apr 01, 2024 |
| 18602643 | FLUORINATED RESORCINOL AND HYDROQUINONE ANALOGS AS CURING AGENTS FOR FLUOROELASTOMERS | KAUCHER, MARK S | 1764 | §102 | Non-Final OA | — | Pending | Mar 12, 2024 |
| 18686470 | TERTIARY AZEOTROPE AND AZEOTROPE-LIKE COMPOSITIONS FOR SOLVENT AND CLEANING APPLICATIONS | DIGGS, TANISHA | — | §102§103 | Non-Final OA | — | Pending | Feb 26, 2024 |
| 18682167 | TREATED INORGANIC PARTICLES FOR MODIFYING POLYMER CRYSTALLINITY | GOLOBOY, JAMES C | 1771 | §102§103 | Non-Final OA | — | Pending | Feb 08, 2024 |
| 18569718 | COMPOSITIONS OF HFO-1234YF, HFC-32, AND HFC-152A AND SYSTEMS FOR USING THE COMPOSITIONS | TOOMER, CEPHIA D | 1771 | §103 | Final Rejection | — | Pending | Dec 13, 2023 |
| 18569797 | COMPOSITIONS OF HFO-1234YF AND HFC-152A AND SYSTEMS FOR USING THE COMPOSITIONS | AHVAZI, BIJAN | — | §103 | Final Rejection | — | Pending | Dec 13, 2023 |
| 18569449 | STABILIZED FLUOROETHYLENE COMPOSITIONS AND METHODS FOR THEIR STORAGE AND USAGE | OYER, ANDREW J | 1767 | §102§103 | Non-Final OA | — | Pending | Dec 12, 2023 |
| 18501620 | COMPOSITIONS COMPRISING TETRAFLUOROPROPENE AND METHODS OF USE THEREOF | CAI, JIAJIA JANIE | 1761 | §103 | Final Rejection | — | Pending | Nov 03, 2023 |
| 18287363 | COMPOSITIONS CONTAINING 3,3,3-TRIFLUOROPROPENE (1243ZF) AND METHODS FOR MAKING AND USING THE COMPOSITIONS | BONAPARTE, AMY C | 1692 | §103§112 | Final Rejection | — | Pending | Oct 18, 2023 |
| 18371072 | AZEOTROPIC COMPOSITIONS OF HFO-1234YF AND HYDROCARBONS | DIAZ, MATTHEW R | 1761 | §103Other | Non-Final OA | 27d | Pending | Sep 21, 2023 |
| 18282069 | COMPOSITIONS COMPRISING E-HFO-1336MZZ AND METHYL FORMATE AND THEIR USE AS EXPANSION AGENTS FOR THERMOPLASTIC FOAM | BOYLE, KARA BRADY | 1766 | §103§112 | Final Rejection | — | Pending | Sep 14, 2023 |
| 18281153 | COMPOSITIONS COMPRISING 2,3,3,3-TETRAFLUOROPROPENE AND OXYGEN-DERIVED OLIGOMERS | CAI, JIAJIA JANIE | 1761 | §103 | Final Rejection | — | Pending | Sep 08, 2023 |
| 18035264 | REFRIGERANT COMPOSITIONS AND USES THEREOF | WALKER, AJA ARYANNA | 1761 | §102§103 | Non-Final OA | — | Pending | May 03, 2023 |
| 18029520 | EMPLOYING LOW REACTIVITY HYDROCARBON DISPERSING AGENT IN AQUEOUS POLYMERIZATION OF FLUOROPOLYMERS | HUHN, RICHARD A | 1764 | — | Final Rejection | 45d overdue | Pending | Mar 30, 2023 |
| 18025427 | SILICONE POLYETHER POLYMER TREATMENTS FOR FIBROUS SUBSTRATES | NISULA, CHRISTINE XU | 1789 | §103 | Final Rejection | — | Pending | Mar 09, 2023 |
| 18012027 | STRETCHED, HIGHLY-UNIFORM CATION EXCHANGE MEMBRANES AND PROCESSES OF FORMING SAME | ESTES, JONATHAN WILLIAM | 1725 | §103§112 | Non-Final OA | — | Pending | Dec 21, 2022 |
| 17767483 | Azeotrope and Azeotrope-like Compositions Comprising Neopentane and Isomers of HFO-1336mzz | DIAZ, MATTHEW R | 1761 | §103 | Non-Final OA | — | Pending | Apr 08, 2022 |
| 17598502 | REFRIGERANT BLENDS IN FLOODED SYSTEMS | ARANT, HARRY E | 3763 | §103 | Non-Final OA | 44d overdue | Pending | Sep 27, 2021 |
| 17426794 | MULTILAYER CATION EXCHANGE CHLORALKALI MEMBRANE | JEBUTU, MOFOLUWASO SIMILOLUWA | 1795 | §103 | Final Rejection | 60d overdue | Pending | Jul 29, 2021 |
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Start Free TrialThe Chemours Company FC LLC has 27 pending office actions as of October 2026, spread across 11 art units and 20 examiners.
Aja Aryanna Walker has the most, with 4 of The Chemours Company FC LLC's pending office actions.
Mostly Chemistry & Materials (USPTO Tech Center 1700), based on where its pending office actions are examined.