Prosecution Insights
Last updated: October 25, 2026

Coway Co., Ltd.

Technology areas: Chemistry & Materials • Medical Devices & Mechanical Engineering

15 pending office actions • 12 art units • 15 examiners • 0 of 15 (0%) have an AI response strategy ready • 49 patents granted in the last 365 days

Analysis

Coway Co., Ltd. has 15 pending office actions in Medical Devices & Mechanical Engineering. The portfolio spans 15 distinct examiners and 12 distinct art units. Every action has a separate examiner assignment, while the lower art unit count shows that some technical examination units receive matters from more than one examiner.

ELOSHWAY, NIKI MARINA is the busiest examiner, with 1 pending matter. There is no single examiner concentration to drive portfolio strategy. Counsel should instead use consistent device terminology, claim-development principles, and evidence practices across the different examiner records and shared art unit environments.

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

Portfolio Summary

15
Total Pending OAs
7
Non-Final OAs
8
Final Rejections
0
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
0
Due this week
3
Due this month
1
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. 4 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Due ≤ 30 days (3)Due ≤ 60 days (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 (60%)
6
Medium (40%)
0
Easy (0%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only4 (27%)
§102 only2 (13%)
Multi-statute (no §101)9 (60%)

Industry Mix

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

4
Life Sciences
27% of docket
0
Information Tech
0% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
11
Mechanical / Eng
73% 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.

150 h
Manual time on pending OAs
30 h
Time saved (low, 20%)
52 h
Time saved (mid, 35%)
1.3 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
ELOSHWAY, NIKI MARINA 1 63.5% +24.6%
IMPINK, MOLLIE LLEWELLYN 1 55.6% +24.6%
SOSNOWSKI, DAVID E 1 67.4% +13.2%
WILLIAMS, PATRICK C 1 80.7% +25.2%
OSWALD, KIRSTIN U 1 59.4% +32.1%
HARE, DAVID R 1 67.7% +32.3%
PANCHOLI, VISHAL J 1 72.8% +25.2%
NIEVES, NELSON J 1 75.5% +16.5%
ZOLLINGER, NATHAN C 1 69.6% +40.0%
SCHULT, ALLEN 1 68.0% +30.9%

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
19107394 WATER PURIFIER AND CONTROL METHOD THEREOF WILLIAMS, PATRICK C —

Hard Cases (9)

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
18987897 BED HARE, DAVID R 8d
19082323 WATER TANK IMPINK, MOLLIE LLEWELLYN 14d
18818823 ICE MAKER HAVING A REFRIGERANT PREHEATING UNIT AND CONTROLLING METHOD OF THE SAME NORMAN, MARC E 27d
19098070 ICE TANK ASSEMBLY ELOSHWAY, NIKI MARINA —
19106485 EVAPORATOR FOR ICE MAKING, AND METHOD FOR MANUFACTURING EVAPORATOR FOR ICE MAKING OSWALD, KIRSTIN U —
18870493 COLD WATER TANK ASSEMBLY NIEVES, NELSON J —
18934293 WATER PURIFIER ZOLLINGER, NATHAN C —
18882939 AIR TREATMENT APPARATUS SCHULT, ALLEN —

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
18987897 BED HARE, DAVID R 8d
19082323 WATER TANK IMPINK, MOLLIE LLEWELLYN 14d
19098070 ICE TANK ASSEMBLY ELOSHWAY, NIKI MARINA —
18729606 MATTRESS ASSEMBLY AND FURNITURE COMPRISING SAME SOSNOWSKI, DAVID E —
19107394 WATER PURIFIER AND CONTROL METHOD THEREOF WILLIAMS, PATRICK C —
19106485 EVAPORATOR FOR ICE MAKING, AND METHOD FOR MANUFACTURING EVAPORATOR FOR ICE MAKING OSWALD, KIRSTIN U —
18870538 WATER OUTLET UNIT AND WATER PURIFIER COMPRISING SAME PANCHOLI, VISHAL J —
18870493 COLD WATER TANK ASSEMBLY NIEVES, NELSON J —

Top Art Units

Art UnitApps
3763 3
3673 2
3736 1
3799 1
3753 1
3754 1
3746 1
3762 1
1771 1
1799 1

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19098070 ICE TANK ASSEMBLY ELOSHWAY, NIKI MARINA 3736 §102§103 Final Rejection — Pending Apr 02, 2025
19082323 WATER TANK IMPINK, MOLLIE LLEWELLYN 3799 §102§103 Final Rejection 14d Pending Mar 18, 2025
18729606 MATTRESS ASSEMBLY AND FURNITURE COMPRISING SAME SOSNOWSKI, DAVID E 3673 §103 Final Rejection — Pending Feb 28, 2025
19107394 WATER PURIFIER AND CONTROL METHOD THEREOF WILLIAMS, PATRICK C 3753 §102 Non-Final OA — Pending Feb 27, 2025
19106485 EVAPORATOR FOR ICE MAKING, AND METHOD FOR MANUFACTURING EVAPORATOR FOR ICE MAKING OSWALD, KIRSTIN U 3763 §103§112 Non-Final OA — Pending Feb 25, 2025
18987897 BED HARE, DAVID R 3673 §102§103 Final Rejection 8d Pending Dec 19, 2024
18870538 WATER OUTLET UNIT AND WATER PURIFIER COMPRISING SAME PANCHOLI, VISHAL J 3754 §102 Final Rejection — Pending Nov 29, 2024
18870493 COLD WATER TANK ASSEMBLY NIEVES, NELSON J 3763 §102§112 Non-Final OA — Pending Nov 29, 2024
18934293 WATER PURIFIER ZOLLINGER, NATHAN C 3746 §102§112 Non-Final OA — Pending Nov 01, 2024
18882939 AIR TREATMENT APPARATUS SCHULT, ALLEN 3762 §102§103 Non-Final OA — Pending Sep 12, 2024
18827345 WATER PURIFIER SHIPMAN, KYLE HARRISON 1771 §102§103 Non-Final OA — Pending Sep 06, 2024
18818823 ICE MAKER HAVING A REFRIGERANT PREHEATING UNIT AND CONTROLLING METHOD OF THE SAME NORMAN, MARC E 3763 §103§112 Final Rejection 27d Pending Aug 29, 2024
18546822 AIR-CLEANING FILTER HAVING DUST COLLECTING AND DEODORIZING FUNCTIONS AND PREPARATION METHOD THEREFOR SPAMER, DONALD R 1799 §103 Non-Final OA — Pending Aug 17, 2023
18258300 HOT WATER SUPPLY DEVICE, CONTROL METHOD FOR SAME, AND WATER TREATMENT DEVICE PEO, JONATHAN M 1779 §103 Final Rejection 60d Pending Jun 19, 2023
18004137 FILTER UNIT AND AIR PURIFIER HAVING SAME MCKENZIE, THOMAS B 1776 §103 Final Rejection — Pending Jan 03, 2023

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Frequently Asked Questions

How many pending USPTO office actions does Coway Co., Ltd. have?

Coway Co., Ltd. has 15 pending office actions as of October 2026, spread across 12 art units and 15 examiners.

Which USPTO examiner handles the most Coway Co., Ltd. applications?

Niki Marina Eloshway has the most, with 1 of Coway Co., Ltd.'s pending office actions.

What technology area are Coway Co., Ltd.'s patent applications in?

Mostly Medical Devices & Mechanical Engineering (USPTO Tech Center 3700), based on where its pending office actions are examined.

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