Prosecution Insights
Last updated: October 25, 2026

Tokuyama Corporation

Technology area: Chemistry & Materials

18 pending office actions • 14 art units • 17 examiners • 0 of 18 (0%) have an AI response strategy ready • 28 patents granted in the last 365 days

Analysis

Tokuyama Corporation has 19 pending office actions in Chemistry & Materials. The matters involve 18 distinct examiners across 14 distinct art units, showing broad examiner dispersion and a wide technical footprint. Portfolio-level consistency will be useful, but most matters require individualized prosecution attention.

AHVAZI, BIJAN is the busiest examiner, with 2 pending matters. Those assignments provide a limited basis for monitoring examiner treatment, while the wider docket calls for application-specific prior-art and claim analysis. Counsel should coordinate materials terminology and disclosure support across the art units without assuming uniform examination preferences.

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

Portfolio Summary

18
Total Pending OAs
10
Non-Final OAs
7
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

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.

0
Overdue
1
Due this week
1
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. 4 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Due ≤ 7 days (1)Due ≤ 30 days (1)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.

9
Hard (50%)
7
Medium (39%)
1
Easy (6%)
1
Unknown (6%)

Rejection Statute Mix

BucketCases
§103 only7 (39%)
§112 only1 (6%)
Multi-statute (no §101)9 (50%)
No statute on record1 (6%)

Industry Mix

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

16
Life Sciences
89% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
1
Semiconductors
6% of docket
1
Mechanical / Eng
6% 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.

180 h
Manual time on pending OAs
36 h
Time saved (low, 20%)
63 h
Time saved (mid, 35%)
1.6 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
AHVAZI, BIJAN 2 63.1% +47.6%
SCHWARTZ, PHILIP N 1 55.5% +17.0%
NIEVES, NELSON J 1 75.5% +16.5%
DUCLAIR, STEPHANIE P. 1 72.3% +19.6%
FAYYAZ, NASHMIYA SAQIB 1 67.3% +42.3%
QI, HUA 1 56.5% +23.0%
SALAMON, PETER A 1 86.3% +5.9%
SAWYER, JENNIFER C 1 68.4% -8.2%
NGUYEN, CAM N 1 84.8% +12.3%
MANGOHIG, THOMAS A 1 20.0% +24.1%

Hard Cases (10)

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
18037966 POLYCRYSTAL SILICON ROD, POLYCRYSTAL SILICON ROD PRODUCTION METHOD, AND POLYCRYSTAL SILICON THERMAL PROCESSING METHOD SONG, MATTHEW J 60d
18690523 METHOD FOR MEASURING SURFACE CARBON LEVEL OF INORGANIC SOLID FAYYAZ, NASHMIYA SAQIB —
18729281 PHOTOCHROMIC COMPOUND, NAPHTHOL DERIVATIVE, CURABLE COMPOSITION, OPTICAL ARTICLE, LENS, AND EYEGLASSES AHVAZI, BIJAN —
18728569 Reaction Furnace for Producing Polycrystalline Silicon Rod, Gas Supply Nozzle, Production Method of Polycrystalline Silicon Rod, and Polycrystalline Silicon Rod QI, HUA —
18697034 Masterbatch, Method for Producing Masterbatch, Rubber Composition for Tires, Method for Producing Rubber Composition for Tires, and Rubber Material for Tires SALAMON, PETER A —
18615802 METHOD FOR PRODUCING ORGANIC SOLVENT SOLUTION OF QUATERNARY AMMONIUM HYDROXIDE SAWYER, JENNIFER C —
18565351 HEXAGONAL BORON NITRIDE POWDER NGUYEN, CAM N —
18281918 SURFACE-TREATED INORGANIC POWDER, PRODUCTION METHOD THEREOF, AND RESIN COMPOSITION AND DISPERSION COMPRISING SAID SURFACE-TREATED INORGANIC POWDER MANGOHIG, THOMAS A —

Interview Candidates (9)

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
18286646 OPTICAL ARTICLE, SPECTACLE LENS AND SPECTACLES AHVAZI, BIJAN 84d
19161577 Rubber Composition for Tire and Rubber Material for Tire SCHWARTZ, PHILIP N —
19105855 ALUMINUM NITRIDE POWDER AND RESIN COMPOSITION NIEVES, NELSON J —
18999298 SEMICONDUCTOR TREATMENT LIQUID FOR REMOVING RUTHENIUM SILICIDE DUCLAIR, STEPHANIE P. —
18690523 METHOD FOR MEASURING SURFACE CARBON LEVEL OF INORGANIC SOLID FAYYAZ, NASHMIYA SAQIB —
18729281 PHOTOCHROMIC COMPOUND, NAPHTHOL DERIVATIVE, CURABLE COMPOSITION, OPTICAL ARTICLE, LENS, AND EYEGLASSES AHVAZI, BIJAN —
18728569 Reaction Furnace for Producing Polycrystalline Silicon Rod, Gas Supply Nozzle, Production Method of Polycrystalline Silicon Rod, and Polycrystalline Silicon Rod QI, HUA —
18565351 HEXAGONAL BORON NITRIDE POWDER NGUYEN, CAM N —

Top Art Units

Art UnitApps
1763 2
1714 2
1731 2
1787 2
1749 1
3763 1
1713 1
2855 1
1759 1
1691 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19161577 Rubber Composition for Tire and Rubber Material for Tire SCHWARTZ, PHILIP N 1749 §103 Non-Final OA — Pending Sep 02, 2025
19105855 ALUMINUM NITRIDE POWDER AND RESIN COMPOSITION NIEVES, NELSON J 3763 §112 Non-Final OA — Pending Feb 24, 2025
18999298 SEMICONDUCTOR TREATMENT LIQUID FOR REMOVING RUTHENIUM SILICIDE DUCLAIR, STEPHANIE P. 1713 §103 Non-Final OA — Pending Dec 23, 2024
18690523 METHOD FOR MEASURING SURFACE CARBON LEVEL OF INORGANIC SOLID FAYYAZ, NASHMIYA SAQIB 2855 §103§112 Non-Final OA — Pending Sep 12, 2024
18729281 PHOTOCHROMIC COMPOUND, NAPHTHOL DERIVATIVE, CURABLE COMPOSITION, OPTICAL ARTICLE, LENS, AND EYEGLASSES AHVAZI, BIJAN 1763 §103§112Other Non-Final OA — Pending Jul 16, 2024
18728569 Reaction Furnace for Producing Polycrystalline Silicon Rod, Gas Supply Nozzle, Production Method of Polycrystalline Silicon Rod, and Polycrystalline Silicon Rod QI, HUA 1714 §103§112 Final Rejection — Pending Jul 12, 2024
18697034 Masterbatch, Method for Producing Masterbatch, Rubber Composition for Tires, Method for Producing Rubber Composition for Tires, and Rubber Material for Tires SALAMON, PETER A 1759 §102§103 Non-Final OA — Pending Mar 29, 2024
18615802 METHOD FOR PRODUCING ORGANIC SOLVENT SOLUTION OF QUATERNARY AMMONIUM HYDROXIDE SAWYER, JENNIFER C 1691 §103§112 Final Rejection — Pending Mar 25, 2024
18565351 HEXAGONAL BORON NITRIDE POWDER NGUYEN, CAM N 1736 §102§103§112 Non-Final OA — Pending Nov 29, 2023
18286646 OPTICAL ARTICLE, SPECTACLE LENS AND SPECTACLES AHVAZI, BIJAN 1763 §103 Final Rejection 84d Pending Oct 12, 2023
18281918 SURFACE-TREATED INORGANIC POWDER, PRODUCTION METHOD THEREOF, AND RESIN COMPOSITION AND DISPERSION COMPRISING SAID SURFACE-TREATED INORGANIC POWDER MANGOHIG, THOMAS A 1731 §103 Non-Final OA — Pending Sep 13, 2023
18279710 PHOTOCHROMIC CURABLE COMPOSITION SHAH, SAMIR 1787 §103 Final Rejection 28d Pending Aug 31, 2023
18279183 ALUMINUM NITRIDE GRANULAR POWDER AND RESIN COMPOSITION KOLB, KATARZYNA I 1767 §103 Final Rejection — Pending Aug 28, 2023
18278324 PHOTOCHROMIC CURABLE COMPOSITION, PHOTOCHROMIC LAMINATE AND METHOD FOR PRODUCING THE SAME KRUER, KEVIN R 1787 §103 Final Rejection — Pending Aug 22, 2023
18268182 POROUS SPHERICAL SILICA AND METHOD OF PRODUCING THE SAME PATEL, SMITA S 1732 §103§112 Non-Final OA — Pending Jun 16, 2023
18037966 POLYCRYSTAL SILICON ROD, POLYCRYSTAL SILICON ROD PRODUCTION METHOD, AND POLYCRYSTAL SILICON THERMAL PROCESSING METHOD SONG, MATTHEW J 1714 §103§112 Final Rejection 60d Pending May 19, 2023
18030904 TUNGSTEN OXIDE AND OXYGEN EVOLUTION REACTION CATALYST FIORITO, JAMES A 1731 §102§103 Non-Final OA — Pending Apr 07, 2023
17920921 METHOD OF MANUFACTURING HALOGEN OXOACID AND MANUFACTURING APPARATUS THEREFOR BAHTA, MEDHANIT W 1692 Other Non-Final OA 6d Pending Oct 24, 2022

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Frequently Asked Questions

How many pending USPTO office actions does Tokuyama Corporation have?

Tokuyama Corporation has 18 pending office actions as of October 2026, spread across 14 art units and 17 examiners.

Which USPTO examiner handles the most Tokuyama Corporation applications?

Bijan Ahvazi has the most, with 2 of Tokuyama Corporation's pending office actions.

What technology area are Tokuyama Corporation's patent applications in?

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

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