Prosecution Insights
Last updated: September 27, 2026

Denka Company Limited

Technology areas: Biotechnology & Pharmaceuticals • Chemistry & Materials

71 pending office actions • 30 art units • 58 examiners • 0 of 71 (0%) have an AI response strategy ready • 42 patents granted in the last 365 days

Portfolio Summary

71
Total Pending OAs
45
Non-Final OAs
22
Final Rejections
4
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 23 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

11
Overdue
0
Due this week
7
Due this month
2
Due in next 60 days
3
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. 23 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (11)Due ≤ 30 days (7)Due ≤ 60 days (2)Due later (3)

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.

31
Hard (44%)
38
Medium (54%)
2
Easy (3%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other3 (4%)
§103 only25 (35%)
§102 only2 (3%)
§112 only2 (3%)
Double-patenting + other11 (15%)
Multi-statute (no §101)28 (39%)

Industry Mix

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

49
Life Sciences
69% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
2
Semiconductors
3% of docket
0
Mechanical / Eng
0% of docket
20
Business / Other
28% 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.

710 h
Manual time on pending OAs
142 h
Time saved (low, 20%)
248 h
Time saved (mid, 35%)
6.2 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KOSLOW, CAROL M 3 81.7% +12.2%
LAWLER, JOHN VINCENT 2 57.4% +43.0%
OGUNBIYI, OLUWATOSIN A 2 63.7% +41.4%
FERRE, ALEXANDRE F 2 59.0% +20.0%
JADHAO, SAMADHAN JAISING 2 46.8% +44.5%
RUMP, RICHARD M 2 74.6% +20.0%
DAVIS, SHENG HAN 2 66.3% +33.2%
KRYLOVA, IRINA 2 36.8% +48.5%
NASSIRI MOTLAGH, ANITA 2 55.9% +24.6%
AUER, LAURA A 2 49.6% +34.0%

Hard Cases (31)

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
18288121 COMPOSITION RAIMUND, CHRISTOPHER W 162d overdue
18022701 FLUORIDE PHOSPHOR, COMPLEX, AND LIGHT-EMITTING DEVICE KOSLOW, CAROL M 147d overdue
18287386 REAGENT COMPOSITION AND KIT SPANGLER, JOSEPH RANKIN 96d overdue
18026889 OXIDE POWDER AND METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION AHVAZI, BIJAN 29d overdue
18683720 FIBERS FOR ARTIFICIAL HAIR, FIBER BUNDLE FOR ARTIFICIAL HAIR, AND HAIR DECORATION PRODUCT MCKINNON, LASHAWNDA T 26d overdue
17770475 BORON NITRIDE POWDER AND PRODUCTION METHOD THEREFOR, BORON CARBONITRIDE POWDER, COMPOSITE MATERIAL, AND HEAT DISSIPATING MEMBER STANLEY, JANE L 17d overdue
16978959 DETECTION OF ALZHEIMER'S DISEASE (AD), FRONTOTEMPORAL LOBAR DEGENERATION (FTLD), AMYOTROPHIC LATERAL SCHLEROSIS (ALS), PARKINSON'S DISEASE (PD), AND DEMENTIA WITH LEWY BODIES (DLB) INDICATED BY PHOSPHORYLATION OF MARCKS FRITCHMAN, REBECCA M 10d overdue
17919096 ADENOVIRUS IMMUNOASSAY METHOD AND IMMUNOASSAY INSTRUMENT BUCKMASTER, MARLENE VRENI 9d overdue

Interview Candidates (21)

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
18022701 FLUORIDE PHOSPHOR, COMPLEX, AND LIGHT-EMITTING DEVICE KOSLOW, CAROL M 147d overdue
18282440 METAL OXIDE POWDER, AND METHOD FOR PRODUCING SAME RUMP, RICHARD M 10d overdue
17426557 IMMUNOCHROMATOGRAPHIC TEST STRIP FOR EXTRACTING AND MEASURING SUGAR CHAIN ANTIGENS, CAPABLE OF CONTROLLING THE DEVELOPMENT OF SPECIMEN BY IMPREGNATING HYDROPHILIC MATERIAL WITH NITRITE OR SOLID ACID REAGENT OGUNBIYI, OLUWATOSIN A 12d
18035435 PHOSPHOR POWDER, LIGHT-EMITTING DEVICE, IMAGE DISPLAY DEVICE, AND ILLUMINATION DEVICE NASSIRI MOTLAGH, ANITA 13d
18282319 SILICON DIOXIDE POWDER DAVIS, SHENG HAN 26d
18035593 PHOSPHOR POWDER, LIGHT-EMITTING DEVICE, IMAGE DISPLAY DEVICE, AND ILLUMINATION DEVICE NASSIRI MOTLAGH, ANITA 30d
18284796 SPHERICAL INORGANIC POWDER AND LIQUID ENCAPSULATION MATERIAL DAVIS, SHENG HAN 55d
18256667 RUBBER MATERIAL, RUBBER COMPOSITION, VULCANIZED OBJECT, FOAMED OBJECT, AND WET SUIT KRYLOVA, IRINA 71d

Top Art Units

Art UnitApps
1672 6
1767 4
1764 3
1734 3
1787 2
1789 2
1656 2
1732 2
1736 2
1761 2

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18859156 HEAT DISSIPATION MEMBER AND ELECTRONIC DEVICE CRUM, JACOB R — §103 Non-Final OA — Pending Oct 22, 2024
18844036 Eu-ACTIVATED BETA-SIALON PHOSPHOR PARTICLES, BETA-SIALON PHOSPHOR POWDER, AND LIGHT-EMITTING DEVICE KOSLOW, CAROL M — §102§112 Non-Final OA — Pending Sep 04, 2024
18807116 COPOLYMER AND LAMINATE CONTAINING SAME LAWLER, JOHN VINCENT 1787 §103§112DP Non-Final OA — Pending Aug 16, 2024
18838215 SPHERICAL BORON NITRIDE PARTICLES, FILLER FOR RESINS, RESIN COMPOSITION, AND METHOD FOR PRODUCING SPHERICAL BORON NITRIDE PARTICLES GREEN, ANTHONY J — §103 Non-Final OA — Pending Aug 13, 2024
18799459 CURABLE COMPOSITION AND CURED PRODUCT THEREOF LAWLER, JOHN VINCENT 1787 §103 Non-Final OA — Pending Aug 09, 2024
18833175 METHOD FOR DETECTING HELICOBACTER SUIS ANTIBODY USING WHOLE CELL OGUNBIYI, OLUWATOSIN A — §102§103 Non-Final OA — Pending Jul 25, 2024
18710224 INORGANIC FILLER AND HEAT DISSIPATION MEMBER DIGGS, TANISHA — §102§103§112 Non-Final OA — Pending May 15, 2024
18706327 REAGENT COMPOSITION AND KIT BERKE-SCHLESSEL, DAVID W 1651 §102§103§112DP Non-Final OA — Pending Apr 30, 2024
18701772 METHOD FOR PRODUCING SPHERICAL SILICA PARTICLES GREGORIO, GUINEVER S — §103 Non-Final OA — Pending Apr 16, 2024
18701790 SPHERICAL SILICA PARTICLES, AND RESIN COMPOSITION USING SAME WASHVILLE, JEFFREY D — §102 Non-Final OA — Pending Apr 16, 2024
18698930 COMPOUND AND METHOD OF PRODUCING THE COMPOUND LISTVOYB, GREGORY — §102§103 Non-Final OA — Pending Apr 05, 2024
18694095 COMPOSITION FOR ULTRAVIOLET LIGHT REFLECTION LIOTT, CAROLINE DUSHECK — §102§103 Non-Final OA — Pending Mar 21, 2024
18693227 CARBON BLACK, COMPOSITION, LAMINATE, AND BATTERY FERRE, ALEXANDRE F — §102§103 Non-Final OA — Pending Mar 19, 2024
18689133 FLUORESCENT POWDER AND LIGHT-EMITTING DEVICE GROOMS, NOA WILLIAM FRAN 2896 §103§112DP Non-Final OA — Pending Mar 05, 2024
18688846 FLUORESCENT POWDER AND LIGHT-EMITTING DEVICE KOSLOW, CAROL M — §103§112 Non-Final OA — Pending Mar 04, 2024
18686971 RUBBER COMPOSITION, VULCANIZATE, AND VULCANIZED MOLDED OBJECT PAK, HANNAH J — §103Other Non-Final OA — Pending Feb 27, 2024
18687278 POWDER INCLUDING SPECIFIC BORON NITRIDE PARTICLES, HEAT DISSIPATION SHEET, AND METHOD FOR PRODUCING HEAT DISSIPATION SHEET SALVATORE, LYNDA 1789 §103DP Final Rejection 147d overdue Pending Feb 27, 2024
18686594 CHLOROPRENE BLOCK COPOLYMER, LATEX, LATEX COMPOSITION, AND RUBBER COMPOSITION FEELY, MICHAEL J — §103DP Non-Final OA — Pending Feb 26, 2024
18566750 STOOL SPECIMEN TEST METHOD AND IMMUNOCHROMATOGRAPHIC TEST PIECE THEREFOR VOLKOV, ALEXANDER ALEXANDROVIC — §102§103 Non-Final OA — Pending Feb 26, 2024
18685605 METHOD FOR PRODUCING POSITIVE ELECTRODE COMPOSITION AND METHOD FOR PRODUCING POSITIVE ELECTRODE BUCHANAN, JACOB — §103 Non-Final OA — Pending Feb 22, 2024
18684435 SPHERICAL CRYSTALLINE SILICA POWDER AND METHOD FOR PRODUCING SAME FORREST, MICHAEL — §103 Non-Final OA — Pending Feb 16, 2024
18683720 FIBERS FOR ARTIFICIAL HAIR, FIBER BUNDLE FOR ARTIFICIAL HAIR, AND HAIR DECORATION PRODUCT MCKINNON, LASHAWNDA T 1789 §102§103§112 Final Rejection 26d overdue Pending Feb 14, 2024
18578989 OXIDE COMPOSITE PARTICLES, METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION MCCRACKEN, DANIEL — §103 Non-Final OA — Pending Jan 12, 2024
18578955 OXIDE COMPOSITE PARTICLES, METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION SALAMON, PETER A — §103 Non-Final OA — Pending Jan 12, 2024
18562078 ANTI-NOROVIRUS ANTIBODY JADHAO, SAMADHAN JAISING 1672 §103§112DP Non-Final OA — Pending Dec 18, 2023
18567872 HEXAGONAL BORON NITRIDE POWDER AND METHOD FOR PRODUCING SAME, AND COSMETICS AND METHOD FOR MANUFACTURING SAME WERTZ, ASHLEE ELIZABETH 1612 §102§103 Non-Final OA 70d Pending Dec 07, 2023
18568066 HEXAGONAL BORON NITRIDE POWDER AND METHOD FOR PRODUCING SAME, AND COSMETIC AND METHOD FOR PRODUCING SAME RUMP, RICHARD M — §103 Non-Final OA — Pending Dec 07, 2023
18567433 HEXAGONAL BORON NITRIDE POWDER AND METHOD FOR PRODUCING SAME, AND COSMETIC PREPARATION AND METHOD FOR PRODUCING SAME PIRO, NICHOLAS ANTHONY 1738 §102§103§112 Final Rejection — Pending Dec 06, 2023
18562099 NOROVIRUS IMMUNOASSAY METHOD AND IMMUNOASSAY INSTRUMENT JADHAO, SAMADHAN JAISING 1672 §102§103§112 Non-Final OA — Pending Nov 17, 2023
18552801 CHLOROPRENE POLYMER, CHLOROPRENE POLYMER COMPOSITION, VULCANIZATION MOLDED BODY AND ROLL DARLING, DEVIN MITCHELL — §102DP Non-Final OA — Pending Oct 30, 2023
18288121 COMPOSITION RAIMUND, CHRISTOPHER W 1746 §103§112 Final Rejection 162d overdue Pending Oct 24, 2023
18287386 REAGENT COMPOSITION AND KIT SPANGLER, JOSEPH RANKIN 1656 §103§112 Final Rejection 96d overdue Pending Oct 18, 2023
18284804 INORGANIC POWDER, INORGANIC COMPOSITION, AND RESIN COMPOSITION KOLB, KATARZYNA I 1767 §102§103§112 Non-Final OA — Pending Sep 28, 2023
18553124 Peptide of Norovirus Origin, Polynucleotide, Antibody, Composition, Method for Identifying Neutralizing Epitope for Norovirus GRIZER, CASSANDRA SENN 1672 §101§102§103§112 Non-Final OA — Pending Sep 28, 2023
18284796 SPHERICAL INORGANIC POWDER AND LIQUID ENCAPSULATION MATERIAL DAVIS, SHENG HAN 1732 §103§112 Non-Final OA 55d Pending Sep 28, 2023
18283624 BORON NITRIDE PARTICLES AND METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION ZHANG, RUIYUN 1782 §102§103 Non-Final OA — Pending Sep 22, 2023
18283479 BORON NITRIDE POWDER AND RESIN COMPOSITION RAJA, JAANZEB CHAANGEZ 1736 §102§103§112 Non-Final OA 20d Pending Sep 22, 2023
18283482 BORON NITRIDE POWDER AND RESIN COMPOSITION DIAZ, MATTHEW R 1761 §103 Non-Final OA — Pending Sep 22, 2023
18282440 METAL OXIDE POWDER, AND METHOD FOR PRODUCING SAME RUMP, RICHARD M 1759 §102Other Non-Final OA 10d overdue Pending Sep 15, 2023
18282319 SILICON DIOXIDE POWDER DAVIS, SHENG HAN 1732 §102§103 Non-Final OA 26d Pending Sep 15, 2023
18262499 CARBON BLACK, CARBON BLACK PRODUCTION METHOD, COMPOSITION FOR ELECTRODE, ELECTRODE, AND SECONDARY BATTERY LEE, DORIS L 1764 §103 Final Rejection 71d Pending Jul 21, 2023
18269257 Method for Measuring Target Antigen, and Insoluble Particles and Kit for Target Antigen Measurement Used Therein DAHLE, CHUN WU 1641 §103 Final Rejection — Pending Jun 22, 2023
18256667 RUBBER MATERIAL, RUBBER COMPOSITION, VULCANIZED OBJECT, FOAMED OBJECT, AND WET SUIT KRYLOVA, IRINA 1764 §103§112 Final Rejection 71d Pending Jun 09, 2023
18266099 BORON NITRIDE POWDER, HEAT DISSIPATION SHEET, AND METHOD FOR PRODUCING HEAT DISSIPATION SHEET WALKER, AJA ARYANNA 1761 §103 Final Rejection 53d Pending Jun 08, 2023
18254757 CARBON BLACK, SLURRY, AND LITHIUM ION SECONDARY BATTERY HENDRICKSON, STUART L 1736 §112 Non-Final OA — Pending May 26, 2023
18254715 CARBON BLACK, SLURRY, AND LITHIUM ION SECONDARY BATTERY EGGERDING, ALIX ECHELMEYER 1729 §103 Final Rejection — Pending May 26, 2023
18035593 PHOSPHOR POWDER, LIGHT-EMITTING DEVICE, IMAGE DISPLAY DEVICE, AND ILLUMINATION DEVICE NASSIRI MOTLAGH, ANITA 1734 §102§103DP Final Rejection 30d Pending May 05, 2023
18035435 PHOSPHOR POWDER, LIGHT-EMITTING DEVICE, IMAGE DISPLAY DEVICE, AND ILLUMINATION DEVICE NASSIRI MOTLAGH, ANITA 1734 §102DP Final Rejection 13d Pending May 04, 2023
18246819 HEXAGONAL BORON NITRIDE POWDER AND METHOD FOR PRODUCING SINTERED BODY AUER, LAURA A 1783 §103 Final Rejection — Pending Mar 27, 2023
18246811 BORON NITRIDE POWDER AND METHOD FOR PRODUCING BORON NITRIDE POWDER AUER, LAURA A 1783 §103 Final Rejection — Pending Mar 27, 2023
18026889 OXIDE POWDER AND METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION AHVAZI, BIJAN 1763 §103§112 Final Rejection 29d overdue Pending Mar 17, 2023
18022701 FLUORIDE PHOSPHOR, COMPLEX, AND LIGHT-EMITTING DEVICE KOSLOW, CAROL M 1734 §102§103§112 Non-Final OA 147d overdue Pending Feb 22, 2023
18041830 BORON NITRIDE PARTICLES, METHOD FOR PRODUCING BORON NITRIDE PARTICLES, RESIN COMPOSITION, AND METHOD FOR PRODUCING RESIN COMPOSITION FERRE, ALEXANDRE F 1788 §103 Non-Final OA — Pending Feb 16, 2023
18041934 BORON NITRIDE PARTICLES, RESIN COMPOSITION, AND METHOD FOR PRODUCING RESIN COMPOSITION ASDJODI, MOHAMMADREZA 1767 §103 Final Rejection 15d Pending Feb 16, 2023
18041408 ELECTRON EMITTER AND DEVICE PROVIDED WITH SAME CHOI, JAMES J 2878 §102§103 Final Rejection — Pending Feb 12, 2023
18017974 MALEIMIDE COPOLYMER KRYLOVA, IRINA 1764 §103 Non-Final OA — Pending Jan 25, 2023
18015918 A SIMPLE METHOD FOR COLLECTING A SAMPLE OF A MUCOSAL FLUID ADHERED TO THE MUCOSAL SURFACE OF THE NASAL CAVITY AND A TEST KIT FOR DETECTING AN ANALYTE IN THE SAMPLE BUCKMASTER, MARLENE VRENI 1672 §102§112 Final Rejection — Pending Jan 12, 2023
18008598 HEAT DISSIPATION SHEET GAITONDE, MEGHA MEHTA 1781 §103 Final Rejection — Pending Dec 06, 2022
18007689 METHOD AND KIT FOR QUANTIFICATION OF LIPOPROTEIN CHOLESTEROL XU, QING 1656 §103§112Other Final Rejection — Pending Dec 01, 2022
17920143 MALEIMIDE-BASED COPOLYMER, MALEIMIDE-BASED COPOLYMER COMPOSITION, RESIN COMPOSITION, AND INJECTION MOLDED BODY SASTRI, SATYA B 1762 §103 Non-Final OA — Pending Oct 20, 2022
17919096 ADENOVIRUS IMMUNOASSAY METHOD AND IMMUNOASSAY INSTRUMENT BUCKMASTER, MARLENE VRENI 1672 §101§103§112Other Non-Final OA 9d overdue Pending Oct 14, 2022
17917622 MYCOPLASMA PNEUMONIAE IMMUNOASSAY METHOD AND IMMUNOASSAY INSTRUMENT DEVI, SARVAMANGALA 1645 §112 Non-Final OA — Pending Oct 07, 2022
17914282 REAGENT COMPRISING ANTIBODY FROM WHICH PART OF Fc REGION IS DELETED COOK, LISA V 1642 §103 Non-Final OA — Pending Sep 23, 2022
17906772 BORON NITRIDE SINTERED BODY, COMPLEX, METHOD FOR MANUFACTURING THESE, AND HEAT DISSIPATION MEMBER MILLER, CAMERON KENNETH 1731 §102§103§112 Non-Final OA 8d Pending Sep 20, 2022
17905040 METHOD FOR PRODUCING INACTIVATED INFLUENZA VACCINE AND VACCINE COMPOSITION THEREOF WANG, RUIXUE 1672 §103 Non-Final OA 66d overdue Pending Aug 25, 2022
17795035 ACRYLIC RUBBER, RUBBER COMPOSITION, CROSSLINKED PRODUCT OF SAME, AND RUBBER HOSE SASTRI, SATYA B 1762 §102§103 Non-Final OA — Pending Jul 25, 2022
17792835 HEAT DISSIPATION SHEET AND METHOD FOR MANUFACTURING HEAT DISSIPATION SHEET OYER, ANDREW J 1767 §103 Non-Final OA — Pending Jul 14, 2022
17770475 BORON NITRIDE POWDER AND PRODUCTION METHOD THEREFOR, BORON CARBONITRIDE POWDER, COMPOSITE MATERIAL, AND HEAT DISSIPATING MEMBER STANLEY, JANE L 1767 §102§112 Final Rejection 17d overdue Pending Apr 20, 2022
17641689 METHOD AND KIT FOR QUANTIFICATION OF SMALL, DENSE LDL CHOLESTEROL WALLENHORST, MAUREEN 1797 §112DP Non-Final OA — Pending Mar 09, 2022
17426557 IMMUNOCHROMATOGRAPHIC TEST STRIP FOR EXTRACTING AND MEASURING SUGAR CHAIN ANTIGENS, CAPABLE OF CONTROLLING THE DEVELOPMENT OF SPECIMEN BY IMPREGNATING HYDROPHILIC MATERIAL WITH NITRITE OR SOLID ACID REAGENT OGUNBIYI, OLUWATOSIN A 1645 §102DP Non-Final OA 12d Pending Jul 28, 2021
16978959 DETECTION OF ALZHEIMER'S DISEASE (AD), FRONTOTEMPORAL LOBAR DEGENERATION (FTLD), AMYOTROPHIC LATERAL SCHLEROSIS (ALS), PARKINSON'S DISEASE (PD), AND DEMENTIA WITH LEWY BODIES (DLB) INDICATED BY PHOSPHORYLATION OF MARCKS FRITCHMAN, REBECCA M 1758 §101§103 Final Rejection 10d overdue Pending Sep 08, 2020

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