Prosecution Insights
Last updated: August 14, 2026

Zhejiang Dunan Artificial Environment Co., Ltd.

28 pending office actions • 3 art units • 12 examiners • 0 of 28 (0%) have an AI response strategy ready • 26 patents granted in the last 365 days

Portfolio Summary

28
Total Pending OAs
22
Non-Final OAs
4
Final Rejections
2
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 16 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

16
Overdue
0
Due this week
0
Due this month
0
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. 16 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (16)

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.

17
Hard (61%)
10
Medium (36%)
1
Easy (4%)
0
Unknown (0%)

Rejection Statute Mix

BucketCases
§103 only7 (25%)
§102 only3 (11%)
§112 only1 (4%)
Multi-statute (no §101)17 (61%)

Industry Mix

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

0
Life Sciences
0% of docket
16
Information Tech
57% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
10
Mechanical / Eng
36% of docket
2
Business / Other
7% 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.

280 h
Manual time on pending OAs
56 h
Time saved (low, 20%)
98 h
Time saved (mid, 35%)
2.5 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
STCLAIR, ANDREW D 16 60.3% +25.3%
ARANT, HARRY E 2 49.0% +22.1%
GRAY, PAUL J 1 78.1% +10.1%
TANENBAUM, TZVI SAMUEL 1 68.2% +9.6%
ROST, ANDREW J 1 65.2% +20.1%
WEILAND, HANS R. 1 55.6% +13.0%
DELEON, DARIO ANTONIO 1 63.4% +33.3%
JELLETT, MATTHEW WILLIAM 1 80.1% +17.3%
WADDY, JONATHAN J 1 71.7% +37.0%
MYERS, KEITH STANLEY 1 52.1% +19.5%

Hard Cases (17)

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
17801520 Heat Exchanger STCLAIR, ANDREW D 607d overdue
17768858 Gas-Liquid Separator and Compression System STCLAIR, ANDREW D 545d overdue
18027917 Flow Regulating Valve STCLAIR, ANDREW D 538d overdue
18030500 Valve Needle Assembly and Electronic Expansion Valve Having Same STCLAIR, ANDREW D 516d overdue
17623261 Solenoid Valve Coil STCLAIR, ANDREW D 454d overdue
18279400 Reversing Valve, and Assembly Method of Reversing Valve STCLAIR, ANDREW D 437d overdue
18011199 Heat Exchange Flat Tube and Heat Exchanger STCLAIR, ANDREW D 407d overdue
18568857 Anti-disassembly connector STCLAIR, ANDREW D 402d overdue

Interview Candidates (25)

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
17801520 Heat Exchanger STCLAIR, ANDREW D 607d overdue
17768858 Gas-Liquid Separator and Compression System STCLAIR, ANDREW D 545d overdue
18027917 Flow Regulating Valve STCLAIR, ANDREW D 538d overdue
18030500 Valve Needle Assembly and Electronic Expansion Valve Having Same STCLAIR, ANDREW D 516d overdue
18276057 Reversing Valve STCLAIR, ANDREW D 491d overdue
18578746 Electronic Water Pump STCLAIR, ANDREW D 476d overdue
18281577 Electric Valve STCLAIR, ANDREW D 468d overdue
17623261 Solenoid Valve Coil STCLAIR, ANDREW D 454d overdue

Top Art Units

Art UnitApps
2178 16
3753 5
3763 5

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
19134565 Multi-Way Valve GRAY, PAUL J 3753 §102§103 Non-Final OA Pending May 30, 2025
18981452 LIQUID DISTRIBUTOR AND HEAT EXCHANGER TANENBAUM, TZVI SAMUEL §102 Non-Final OA Pending Dec 14, 2024
18715065 Electronic Expansion Valve ROST, ANDREW J §102 Non-Final OA Pending Dec 08, 2024
18867753 Heat Exchanger WEILAND, HANS R. 3763 §102§103§112 Non-Final OA Pending Nov 20, 2024
18885573 HEAT EXCHANGER AND AIR CONDITIONING SYSTEM HAVING SAME ARANT, HARRY E 3763 §103 Final Rejection Pending Sep 14, 2024
18840448 Flow Adjustment Assembly and Electronic Expansion Valve DELEON, DARIO ANTONIO 3763 §103§112 Non-Final OA Pending Aug 21, 2024
18723646 Electromagnetic Valve JELLETT, MATTHEW WILLIAM 3753 §103§112 Non-Final OA Pending Jun 24, 2024
18651725 MICRO-CHANNEL HEAT EXCHANGER ARANT, HARRY E 3763 §103 Final Rejection Pending May 01, 2024
18696067 Reversing Valve WADDY, JONATHAN J 3753 §102§103 Final Rejection Pending Mar 27, 2024
18694939 Reversing Valve and Heat Exchange System with Reversing Valve MYERS, KEITH STANLEY 3763 §102§103§112 Non-Final OA Pending Mar 22, 2024
18578746 Electronic Water Pump STCLAIR, ANDREW D 2178 §112 Non-Final OA 476d overdue Pending Jan 12, 2024
18401498 ELECTROMAGNETIC VALVE AND AIR CONDITIONING SYSTEM PROVIDED WITH SAME CARY, KELSEY E 3753 §103 Non-Final OA Pending Dec 31, 2023
18568857 Anti-disassembly connector STCLAIR, ANDREW D 2178 §103§112Other Non-Final OA 402d overdue Pending Dec 11, 2023
18568856 Anti-Disassembly Connector STCLAIR, ANDREW D 2178 §102§112Other Non-Final OA 401d overdue Pending Dec 11, 2023
18516935 CHECK VALVE GARDNER, NICOLE 3753 §103 Final Rejection Pending Nov 21, 2023
18284081 Stop Valve STCLAIR, ANDREW D 2178 §103 Non-Final OA 452d overdue Pending Sep 26, 2023
18281577 Electric Valve STCLAIR, ANDREW D 2178 §103 Non-Final OA 468d overdue Pending Sep 12, 2023
18279400 Reversing Valve, and Assembly Method of Reversing Valve STCLAIR, ANDREW D 2178 §103§112 Non-Final OA 437d overdue Pending Aug 30, 2023
18276057 Reversing Valve STCLAIR, ANDREW D 2178 §103 Non-Final OA 491d overdue Pending Aug 07, 2023
18030500 Valve Needle Assembly and Electronic Expansion Valve Having Same STCLAIR, ANDREW D 2178 §102§112 Non-Final OA 516d overdue Pending Apr 05, 2023
18028767 Flow Regulating Valve STCLAIR, ANDREW D 2178 §102§103§112 Non-Final OA 382d overdue Pending Mar 28, 2023
18027917 Flow Regulating Valve STCLAIR, ANDREW D 2178 §102§103 Non-Final OA 538d overdue Pending Mar 22, 2023
18027915 FLOW REGULATING VALVE STCLAIR, ANDREW D 2178 §102 Non-Final OA 406d overdue Pending Mar 22, 2023
18011199 Heat Exchange Flat Tube and Heat Exchanger STCLAIR, ANDREW D 2178 §102§103 Non-Final OA 407d overdue Pending Dec 19, 2022
17801520 Heat Exchanger STCLAIR, ANDREW D 2178 §102§103§112 Non-Final OA 607d overdue Pending Aug 22, 2022
17768858 Gas-Liquid Separator and Compression System STCLAIR, ANDREW D 2178 §102§103 Non-Final OA 545d overdue Pending Apr 14, 2022
17767470 Gas-Liquid Separator and Compression System STCLAIR, ANDREW D 2178 §103§112 Non-Final OA 382d overdue Pending Apr 08, 2022
17623261 Solenoid Valve Coil STCLAIR, ANDREW D 2178 §102§103§112 Non-Final OA 454d overdue Pending Dec 28, 2021

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