Prosecution Insights
Last updated: October 04, 2026

Examiner: LO, ANDREW S

Tech Center 3700 • Art Units: 3764 3778 3784

This examiner grants 72% of resolved cases

Analysis

Andrew S. Lo is an examiner in Tech Center 3700 and Art Unit 3764, having handled 881 resolved cases. The allowance rate is 72.2 percent, which is favorable for applicants. The interview lift of 27.6 percent indicates that interviews are a highly effective tool for increasing the probability of a grant.

The median days to allowance is 804, which is a relatively fast timeline for the examination process. This 804-day figure is an important metric for applicants who value a quick resolution. With 881 resolved cases, the examiner has a high volume of experience, making the 72.2 percent allowance rate a very reliable indicator of performance.

Practitioners should leverage the 27.6 percent interview lift to further improve their odds. The 72.2 percent allowance rate already suggests a high likelihood of success, and the 804-day median indicates that this success can be achieved quickly. The data from 881 resolved cases supports a proactive approach to prosecution.

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

Performance Statistics

72.2%
Allow Rate
+2.2% vs TC avg
899
Total Applications
+27.6%
Interview Lift
804
Avg Prosecution Days
Based on 881 resolved cases, 2023–2026

Rejection Statute Breakdown

1.8%
§101 Eligibility
26.1%
§102 Novelty
39.2%
§103 Obviousness
26.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19159162 Weight and piece of equipment for weightlifting exercise Final Rejection AEROBIC AND FITNESS, S.L.U.
19259849 MULTIMODAL FITNESS BAR Non-Final OA CASTLE FIT CORPORATION
19241768 ABDOMINAL EXERCISE DEVICE WITH TETHER ASSEMBLY FOR CONNECTION TO A RESISTANCE ASSEMBLY Non-Final OA Kormel LLC
19229910 Spring Ankle Torque Device Non-Final OA Triphasic Xiathlete Institute, Inc.
19221580 Ergonomic Hand Grip Strengthener Non-Final OA MACBO TECHNOLOGIES LLC
19128249 SELF SPOTTING BENCH PRESS BARBELL Non-Final OA Hak Fit LLC
19202915 CYCLING TRAINING DEVICE WITH INTEGRATED STORAGE Non-Final OA Wahoo Fitness LLC
19087940 MULTI-CONFIGURATION EXERCISE DEVICE INCLUDING AN ARCUATE TRACK Non-Final OA Freak Athlete Essentials LLC
19049611 ACTUATOR GEARED FEEDBACK SYSTEM FOR A RESISTANCE TRAINING MACHINE AND METHODS OF USE Non-Final OA Speede Fitness, LLC
19029979 EXERCISE DEVICE WITH HANDGRIP ASSEMBLIES Non-Final OA JFXD TRX ACQ LLC
18871614 EXERCISE AND TRAINING APPARATUS Non-Final OA THAT'S EPIC! LLC
18870949 INERTIA MITIGATION SYSTEM Non-Final OA CONFIGURABLE FITNESS LLC
18941348 WEARABLE RESISTANCE TRAINING SYSTEM AND METHOD Final Rejection ALL PRO TRAINER L.L.C
18581341 EXERCISE EQUIPMENT AND RELATED METHODS Non-Final OA China 2 West Services Ltd.
18440924 GRIP RESISTANCE DEVICE Non-Final OA The Crab Grip LLC

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