Prosecution Insights
Last updated: May 29, 2026

Zhejiang Dunan Artificial Environment Co. Ltd.

21 pending office actions • 3 art units • 6 examiners • 0 of 21 (0%) have an AI response strategy ready • 22 patents granted in the last 365 days

Portfolio Summary

21
Total Pending OAs
20
Non-Final OAs
0
Final Rejections
1
Advisory / Quayle

Response Deadline Pressure

Based on the USPTO statutory response window for each pending office action. 21 of the docket's apps have a known mailing date; the rest are excluded from the tile counts.

17
Overdue
0
Due this week
2
Due this month
2
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. 21 of the docket's apps have a known mailing date.

-30dToday30d60d90d120d
Overdue (17)Due ≤ 30 days (2)Due ≤ 60 days (2)

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.

0
Hard (0%)
18
Medium (86%)
1
Easy (5%)
2
Unknown (10%)

Rejection Statute Mix

BucketCases
§103 only16 (76%)
§102 only2 (10%)
§112 only1 (5%)
No statute on record2 (10%)

Industry Mix

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

0
Life Sciences
0% of docket
16
Information Tech
76% of docket
0
Communications
0% of docket
0
Semiconductors
0% of docket
5
Mechanical / Eng
24% 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.

210 h
Manual time on pending OAs
42 h
Time saved (low, 20%)
74 h
Time saved (mid, 35%)
1.8 wks
FTE-weeks freed (mid)

Top Examiners on this docket

ExaminerApps on this docketAllow rateInterview lift
PULLIAM, CHRISTYANN R 16 41.4% +24.3%
GARDNER, NICOLE 1 68.8% +15.5%
PHAN, AN BACH 1
BASTIANELLI, JOHN 1 73.4% +28.9%
CANOVA, HENRY FRANCIS 1 0.0% +0.0%
ALVARE, PAUL 1 57.5% +38.3%

Hard Cases (1)

Multi-statute / §101-driven matters, or cases in front of an examiner with an allow rate under 30%. The top 1 ordered by deadline are shown.

App #TitleExaminerDue in
18634843 REFRIGERANT DISTRIBUTION DEVICE AND HEAT EXCHANGER CANOVA, HENRY FRANCIS 35d

Interview Candidates (19)

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

Top Art Units

Art UnitApps
2178 16
3763 3
3753 2

Pending Office Actions

App #TitleExaminerArt UnitStatutesStatusDue inAIFiled
18979695 STOP VALVE GARDNER, NICOLE 3753 §103 Non-Final OA 34d Pending Dec 13, 2024
18888184 FIXING STRUCTURE AND INSERTION-PLATE-TYPE HEAT EXCHANGER HAVING SAME PHAN, AN BACH 3763 §103 Non-Final OA 9d Pending Sep 18, 2024
18706328 Main Valve Seat and Four-Way Valve BASTIANELLI, JOHN 3753 §103 Non-Final OA 22d Pending Apr 30, 2024
18634843 REFRIGERANT DISTRIBUTION DEVICE AND HEAT EXCHANGER CANOVA, HENRY FRANCIS 3763 §103 Non-Final OA 35d Pending Apr 12, 2024
18688350 Heat Exchanger ALVARE, PAUL 3763 §103 Non-Final OA 98d overdue Pending Feb 29, 2024
18578746 Electronic Water Pump PULLIAM, CHRISTYANN R 2178 §112 Non-Final OA 476d overdue Pending Jan 12, 2024
18568856 Anti-Disassembly Connector PULLIAM, CHRISTYANN R 2178 Other Non-Final OA 401d overdue Pending Dec 11, 2023
18568857 Anti-disassembly connector PULLIAM, CHRISTYANN R 2178 Other Non-Final OA 402d overdue Pending Dec 11, 2023
18284081 Stop Valve PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 452d overdue Pending Sep 26, 2023
18281577 Electric Valve PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 468d overdue Pending Sep 12, 2023
18279400 Reversing Valve, and Assembly Method of Reversing Valve PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 437d overdue Pending Aug 30, 2023
18276057 Reversing Valve PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 491d overdue Pending Aug 07, 2023
18030500 Valve Needle Assembly and Electronic Expansion Valve Having Same PULLIAM, CHRISTYANN R 2178 §102 Non-Final OA 516d overdue Pending Apr 05, 2023
18028767 Flow Regulating Valve PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 382d overdue Pending Mar 28, 2023
18027917 Flow Regulating Valve PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 538d overdue Pending Mar 22, 2023
18027915 FLOW REGULATING VALVE PULLIAM, CHRISTYANN R 2178 §102 Non-Final OA 406d overdue Pending Mar 22, 2023
18011199 Heat Exchange Flat Tube and Heat Exchanger PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 407d overdue Pending Dec 19, 2022
17801520 Heat Exchanger PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 607d overdue Pending Aug 22, 2022
17768858 Gas-Liquid Separator and Compression System PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 545d overdue Pending Apr 14, 2022
17767470 Gas-Liquid Separator and Compression System PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 382d overdue Pending Apr 08, 2022
17623261 Solenoid Valve Coil PULLIAM, CHRISTYANN R 2178 §103 Non-Final OA 454d overdue Pending Dec 28, 2021

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