Prosecution Insights
Last updated: August 17, 2026

Mitsui Mining & Smelting Co., Ltd.

34 pending office actions • 23 art units • 33 examiners • 0 of 34 (0%) have an AI response strategy ready • 32 patents granted in the last 365 days

Portfolio Summary

34
Total Pending OAs
21
Non-Final OAs
11
Final Rejections
2
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 12 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

6
Overdue
0
Due this week
3
Due this month
3
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. 12 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (6)Due ≤ 30 days (3)Due ≤ 60 days (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.

8
Hard (24%)
23
Medium (68%)
3
Easy (9%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§101 + other1 (3%)
§103 only21 (62%)
§102 only1 (3%)
§112 only2 (6%)
Double-patenting only1 (3%)
Double-patenting + other1 (3%)
Multi-statute (no §101)7 (21%)

Industry Mix

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

26
Life Sciences
76% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
1
Semiconductors
3% of docket
2
Mechanical / Eng
6% of docket
5
Business / Other
15% 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.

340 h
Manual time on pending OAs
68 h
Time saved (low, 20%)
119 h
Time saved (mid, 35%)
3.0 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
KUMAR, SRILAKSHMI K 2 50.5% +16.0%
BOSWELL, CHRISTOPHER J 1 67.4% +26.0%
CUMAR, NATHAN 1 78.7% +14.6%
HOROWITZ, NOAH NMN 1 73.2% +27.5%
MCNALLY, DANIEL 1 67.9% +13.7%
NOGUEROLA, ALEXANDER STEPHAN 1 82.7% +2.9%
CHRISTY, KATHERINE A 1 75.2% +35.3%
LI, JUN 1 54.5% +56.8%
YANG, ZHEREN J 1 57.2% +52.9%
SWANSON, ANDREW L 1 66.1% +11.4%

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
18995552 DEVICE, HYDROXIDE ION CONCENTRATION MEASUREMENT APPARATUS PROVIDED WITH SAME, AND METHOD FOR MEASURING CONCENTRATION OF HYDROXIDE ION BY USING SAME NOGUEROLA, ALEXANDER STEPHAN

Hard Cases (8)

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
18277307 METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE ZEMUI, NATHANAEL T 5d overdue
18277742 SOLID ELECTROLYTE AND METHOD FOR PRODUCING SAME ROLDAN RAMOS, CHRISTIAN 15d
19239414 DOOR LOCK DEVICE CUMAR, NATHAN
19103077 TEMPORARY FIXATION COMPOSITION, BONDED STRUCTURE MANUFACTURING METHOD, AND USE OF TEMPORARY FIXATION COMPOSITION MCNALLY, DANIEL
18879996 METAL NONWOVEN FABRIC AND ELECTRODE COMPRISING SAME CHRISTY, KATHERINE A
18281005 SOLID ELECTROLYTE AND METHOD FOR PRODUCING SAME CORNO JR, JAMES ANTHONY JOHN
18279174 SEPARATION METHOD FOR SEPARATING CONSTITUENT MATERIAL FROM MEMBER AND METHOD FOR PROCESSING MEMBER BARCENA, CARLOS
18274615 APPARATUSES AND METHODS FOR PRODUCING SOL, GEL AND SILICA POROUS BODY SEIFU, LESSANEWORK T

Interview Candidates (10)

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
18024846 ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME, ELECTRODE MIXTURE, AND BATTERY KUMAR, SRILAKSHMI K 39d
18724400 SHEET FIXING DEVICE, SHEET PEELING DEVICE, AND SHEET PEELING METHOD SWANSON, ANDREW L 41d
19322225 STRIKER FOR DOOR LATCH BOSWELL, CHRISTOPHER J
19239414 DOOR LOCK DEVICE CUMAR, NATHAN
19217208 VEHICLE DOOR LATCH DEVICE HOROWITZ, NOAH NMN
19103077 TEMPORARY FIXATION COMPOSITION, BONDED STRUCTURE MANUFACTURING METHOD, AND USE OF TEMPORARY FIXATION COMPOSITION MCNALLY, DANIEL
18879996 METAL NONWOVEN FABRIC AND ELECTRODE COMPRISING SAME CHRISTY, KATHERINE A
18869325 EXHAUST GAS PURIFICATION CATALYST LI, JUN

Top Art Units

Art UnitApps
1723 4
3675 2
1727 2
1738 2
1784 1
1736 1
1745 1
1742 1
1734 1
2847 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19322225 STRIKER FOR DOOR LATCH BOSWELL, CHRISTOPHER J 3675 §102 Non-Final OA Pending Sep 08, 2025
19239414 DOOR LOCK DEVICE CUMAR, NATHAN 3675 §102§103 Non-Final OA Pending Jun 16, 2025
19217208 VEHICLE DOOR LATCH DEVICE HOROWITZ, NOAH NMN §112 Non-Final OA Pending May 23, 2025
19103077 TEMPORARY FIXATION COMPOSITION, BONDED STRUCTURE MANUFACTURING METHOD, AND USE OF TEMPORARY FIXATION COMPOSITION MCNALLY, DANIEL §101§102 Non-Final OA Pending Feb 11, 2025
18995552 DEVICE, HYDROXIDE ION CONCENTRATION MEASUREMENT APPARATUS PROVIDED WITH SAME, AND METHOD FOR MEASURING CONCENTRATION OF HYDROXIDE ION BY USING SAME NOGUEROLA, ALEXANDER STEPHAN §112 Non-Final OA Pending Jan 16, 2025
18879996 METAL NONWOVEN FABRIC AND ELECTRODE COMPRISING SAME CHRISTY, KATHERINE A 1784 §103§112 Non-Final OA Pending Dec 30, 2024
18869325 EXHAUST GAS PURIFICATION CATALYST LI, JUN 1736 §103§112DP Non-Final OA Pending Nov 26, 2024
18850849 METAL FOIL WITH CARRIER YANG, ZHEREN J §103 Non-Final OA Pending Sep 25, 2024
18724400 SHEET FIXING DEVICE, SHEET PEELING DEVICE, AND SHEET PEELING METHOD SWANSON, ANDREW L 1745 §103 Non-Final OA 41d Pending Jun 26, 2024
18687712 MANGANESE OXIDE, MANGANESE OXIDE PARTICLES, NEAR-INFRARED TRANSMISSION MATERIAL, AND NEAR-INFRARED TRANSMISSION FILM CHU, YONG LIANG §103 Non-Final OA Pending Feb 28, 2024
18284707 EXHAUST GAS PURIFYING CATALYST COMPOSITION AND EXHAUST GAS PURIFYING CATALYST CALDERON, DAVID ANDREW 1742 §103 Final Rejection Pending Sep 28, 2023
18284714 EXHAUST GAS PURIFYING CATALYST COMPOSITION AND EXHAUST GAS PURIFYING CATALYST MCDONOUGH, JAMES E 1734 §103 Final Rejection Pending Sep 28, 2023
18284643 MULTILAYER SUBSTRATE MANUFACTURING METHOD AND WIRING SUBSTRATE DINH, TUAN T 2847 §103 Non-Final OA Pending Sep 28, 2023
18281586 EXHAUST GAS PURIFICATION CATALYST COMPOSITION AND EXHAUST GAS PURIFICATION CATALYST ZHANG, KELING NMN 1732 §103 Non-Final OA Pending Sep 12, 2023
18281005 SOLID ELECTROLYTE AND METHOD FOR PRODUCING SAME CORNO JR, JAMES ANTHONY JOHN 1722 §102§103 Non-Final OA Pending Sep 08, 2023
18279350 PHOSPHOR, METHOD FOR PRODUCING SAME, LIGHT EMITTING ELEMENT CONTAINING PHOSPHOR, AND LIGHT EMITTING DEVICE OYER, ANDREW J 1767 DP Final Rejection Pending Aug 29, 2023
18279174 SEPARATION METHOD FOR SEPARATING CONSTITUENT MATERIAL FROM MEMBER AND METHOD FOR PROCESSING MEMBER BARCENA, CARLOS 1723 §102§103 Final Rejection Pending Aug 28, 2023
18277742 SOLID ELECTROLYTE AND METHOD FOR PRODUCING SAME ROLDAN RAMOS, CHRISTIAN 1723 §103§112 Final Rejection 15d Pending Aug 17, 2023
18277669 METHODS FOR MANUFACTURING LAMINATED PLATE AND HEAT GENERATOR, AND DEFROSTER GOFF II, JOHN L 1746 §103 Non-Final OA 48d Pending Aug 17, 2023
18277307 METHOD FOR PRODUCING SULFIDE SOLID ELECTROLYTE ZEMUI, NATHANAEL T 1727 §102§103 Non-Final OA 5d overdue Pending Aug 15, 2023
18276283 COMPLEX OXIDE AND METHOD FOR PRODUCING THE SAME KUMAR, SRILAKSHMI K 1738 §103 Non-Final OA Pending Aug 08, 2023
18275779 ELECTRODE CATALYST, MANUFACTURING METHOD THEREFOR, AND FUEL CELL BROWN, SEAN ROBERT 1743 §103 Non-Final OA Pending Aug 03, 2023
18274615 APPARATUSES AND METHODS FOR PRODUCING SOL, GEL AND SILICA POROUS BODY SEIFU, LESSANEWORK T 1735 §102§103 Non-Final OA Pending Jul 27, 2023
18274176 BATTERY MARTIN, ANGELA J 1727 §103 Final Rejection 12d Pending Jul 25, 2023
18265827 POLYOXO NIOBATE COMPOUND DISPERSION AND METHOD FOR MANUFACTURING SAME OTTON, ALICIA L 1626 §103 Non-Final OA Pending Jun 07, 2023
18024846 ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME, ELECTRODE MIXTURE, AND BATTERY KUMAR, SRILAKSHMI K 1723 §103Other Non-Final OA 39d Pending Mar 06, 2023
18014922 SOLID ELECTROLYTE ASSEMBLY AND ELECTROCHEMICAL ELEMENT COMPRISING SAME WANG, EUGENIA 1759 §103 Final Rejection 60d overdue Pending Jan 06, 2023
17923277 SOLID ELECTROLYTE, ELECTRODE MIXTURE AND BATTERY JOHNSON, JONATHAN J 1700 §103 Final Rejection Pending Nov 04, 2022
17911254 ELECTRODE CATALYST LAYER FOR ELECTROCHEMICAL CELLS, MEMBRANE ELECTRODE ASSEMBLY FOR ELECTROCHEMICAL CELLS, AND ELECTROCHEMICAL CELL REDDY, SATHAVARAM I 1785 §103 Final Rejection Pending Sep 13, 2022
17801668 ZINC FOIL, BATTERY NEGATIVE ELECTRODE ACTIVE MATERIAL USING SAME, AND ZINC FOIL PRODUCTION METHOD ELLIOTT, QUINTIN DALE 1724 §103 Non-Final OA 85d overdue Pending Aug 23, 2022
17792839 SULFIDE SOLID ELECTROLYTE, AND ELECTRODE MIXTURE, SOLID ELECTROLYTE LAYER AND BATTERY USING SAME EFYMOW, JESSE JAMES 1723 §103 Non-Final OA 20d Pending Jul 14, 2022
17789818 NIOBIC ACID AQUEOUS SOLUTION TAYLOR, JORDAN W 1738 §103 Non-Final OA 23d overdue Pending Jun 29, 2022
17764232 SULFIDE SOLID ELECTROLYTE, AND ELECTRODE MIXTURE, SOLID ELECTROLYTE LAYER, AND SOLID BATTERY USING SAME KRONE, TAYLOR HARRISON 1725 §103 Final Rejection 32d overdue Pending Mar 28, 2022
17426418 SULFIDE SOLID-STATE ELECTROLYTE, ELECTRODE MIXTURE, SOLID-STATE BATTERY AND SULFIDE-SOLID-STATE-ELECTROLYTE MANUFACTURING METHOD LUO, KAN 1751 §103 Final Rejection 5d overdue Pending Jul 28, 2021

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