Prosecution Insights
Last updated: October 26, 2026

Pinping Sun, USPTO Patent Examiner

Listed by the USPTO as SUN, PINPING

Tech Center 2800 • Art Units: 2685 2800 2833 2834 2836 2838 2843 2849 2872

This examiner grants 75% of resolved cases

Analysis

Sun, Pinping is assigned to Tech Center 2800 and Art Unit 2685. The record includes 471 resolved cases and reports a 74.7% allowance rate. Practitioners can use this substantial case history to assess claim strategy and to prepare for prosecution issues reflected in the examiner’s recorded outcomes.

The interview lift is 38.1%, indicating a strong positive association between interviews and allowance outcomes in the available data. The median time to allowance is 1071 days. The listed companies are Ferrari, Avago Technologies, and Medtronic. The listed firms are CANTOR COLBURN, Li & Cai Intellectual Property, and MARSHALL, GERSTEIN & BORUN.

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

Performance Statistics

74.7%
Allow Rate
+6.7% vs TC avg
487
Total Applications
+38.1%
Interview Lift
1071
Avg Prosecution Days
Based on 471 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
15.0%
§102 Novelty
58.2%
§103 Obviousness
20.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18659574 MOTOR VEHICLE WITH RELEASABLE ELECTRIC CHARGING PORT Non-Final OA FERRARI S.P.A.
18359584 SCALABLE SWITCH CAPACITOR VOLTAGE REGULATORS Final Rejection Avago Technologies International Sales Pte. Limited
18423445 BATTERY PACK MAINTENANCE AND CHARGING Non-Final OA Medtronic, Inc.

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Frequently Asked Questions

What is examiner Pinping Sun's allowance rate?

74.7% of resolved applications examined by Pinping Sun were allowed (471 resolved cases), compared with 70.9% across Art Unit 2685 over the last five years.

Does an interview help with examiner Pinping Sun?

This examiner's interview lift is +38.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Pinping Sun take to allow a patent?

Applications allowed by Pinping Sun took 1,071 days on average from filing to allowance.

Which art unit does examiner Pinping Sun work in?

Pinping Sun examines applications in Art Unit 2685 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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