Prosecution Insights
Last updated: October 02, 2026

Examiner: LIU, LI

Tech Center 2600 • Art Units: 2613 2624 2634 2636 2665 2666

This examiner grants 80% of resolved cases

Analysis

Li Liu is an examiner in Tech Center 2600, working in Art Unit 2613. The examiner has a very high volume of 1740 resolved cases. The allowance rate is 80.5 percent. This high rate indicates that the vast majority of applications result in a patent grant. The 1740 resolved cases provide an exceptionally strong statistical foundation for these performance metrics.

The median days to allowance is 956. This timeframe shows that the prosecution process is relatively efficient for successful applications. The interview lift is 16.7 percent. This figure represents the improvement in allowance probability associated with an examiner interview. When compared to the 80.5 percent allowance rate, the 16.7 percent lift shows that interviews are an effective way to further increase the chances of a grant.

Practitioners in Art Unit 2613 should find the 80.5 percent allowance rate and 956 median days to allowance very encouraging. The 1740 resolved cases reflect a long and consistent history of granting patents. The 16.7 percent interview lift remains a useful tool for resolving specific issues. Overall, the data suggests a highly favorable and efficient environment for patent applicants.

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

Performance Statistics

80.5%
Allow Rate
+18.5% vs TC avg
1,756
Total Applications
+16.7%
Interview Lift
956
Avg Prosecution Days
Based on 1740 resolved cases, 2023–2026

Rejection Statute Breakdown

7.4%
§101 Eligibility
16.0%
§102 Novelty
46.1%
§103 Obviousness
23.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18308221 Electronic Device with Digital Frequency Discriminator for Wireless Communication Final Rejection Apple Inc.
19044071 AIRCRAFT AND VEHICLE TRANSCEIVERS Non-Final OA Airbus Operations Limited
19043809 FREE SPACE OPTICAL COMMUNICATION WITH AIRCRAFT Non-Final OA Airbus Operations Limited
19176779 OPTICAL WIRELESS COMMUNICATION SYSTEM AND RECEIVING DEVICE Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18620555 OPTICAL WIRELESS COMMUNICATION METHOD AND DEVICE Final Rejection HUAWEI TECHNOLOGIES CO., LTD.
19108383 CONTROL SYSTEM, CONTROL APPARATUS, NETWORK APPARATUS, CONTROL METHOD AND PROGRAM Non-Final OA NTT, Inc.
18567217 WIRELESS COMMUNICATION METHOD Final Rejection NTT, Inc.
18279524 STATE ESTIMATION SYSTEM, SECRET SIGNAL GENERATOR, STATE ESTIMATION METHOD, SECRET SIGNAL GENERATION PROGRAM Non-Final OA Nippon Telegraph and Telephone Corporation
18827372 LOW COMPLEXITY AND LOW LATENCY IMPLEMENTATION FOR CELLULAR FRONTHAULING Final Rejection Microsoft Technology Licensing, LLC
18502600 DENSE WAVELENGTH DIVISION MULTIPLEXING OPTICAL LINKS INCLUDING RING RESONATORS Non-Final OA NVIDIA Corporation
18418202 NETWORK-BASED BACKUP BATTERY SYSTEM Final Rejection Charter Communications Operating, LLC
19075723 INTER-SATELLITE LINKS WITH IMPROVED RESILIENCE Non-Final OA Hughes Network Systems, LLC
19044323 TWO-DIMENSIONAL WAVELENGTH SCANNING TRANSCEIVER WITH INTEGRATED NATURAL INTELLIGENCE FOR OPTIMIZED OPTICAL WIRELESS COMMUNICATIONS Non-Final OA AI Atlas

Facing This Examiner?

IP Author analyzes examiner patterns and generates tailored response strategies with the highest chance of allowance.

Build Your Strategy

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month