Prosecution Insights
Prosecution Insights
Tech Center 3700 • Art Units: 3785
This examiner grants 50% of resolved cases
Thomas Zhu Chang is an examiner in Tech Center 3700 and Art Unit 3785. He has 22 resolved cases and an allowance rate of 50.0 percent. This 50.0 percent rate indicates the proportion of applications in his 22 resolved cases that result in a patent grant.
The interview lift is 65.8 percent, which is exceptionally high and indicates that interviews are a critical strategy for success. This 65.8 percent lift is the most prominent metric in his profile, suggesting that verbal communication is highly effective. The median days to allowance is 1310, providing a standard expectation for the duration of prosecution.
Practitioners should prioritize interviews to improve the 50.0 percent allowance rate in his 22 resolved cases. The 65.8 percent lift can dramatically change the outlook of a case. Combined with the 1310-day median, these statistics provide a clear strategic path for applicants in Art Unit 3785.
| App # | Title | Status | Assignee |
|---|---|---|---|
| 18217007 | MASSAGE APPARATUS | Final Rejection | SAMSUNG ELECTRONICS CO., LTD. |
| 18078287 | WEARABLE DEVICE AND OPERATING METHOD THEREFOR | Non-Final OA | SAMSUNG ELECTRONICS CO., LTD. |
| 18476024 | THERAPY SYSTEM FOR RESPIRATORY-RELATED DISORDERS, AND PATIENT INTERFACE AND HEADGEAR FOR USE IN SAME | Non-Final OA | RESMED PTY LTD |
| 17926567 | APPARATUS, SYSTEMS AND METHODS FOR POSITIONING AND STABILISING A PATIENT INTERFACE | Final Rejection | RESMED PTY LTD |
| 17768771 | SENSOR ASSEMBLY FOR RESPIRATORY APPARATUS | Non-Final OA | ResMed Pty Ltd |
| 19402604 | WEARABLE DEVICES FOR VIBRATORY STIMULATION TO REDUCE TREMOR | Final Rejection | Cala Health, Inc. |
| 18113025 | ANESTHESIA MACHINE, ANESTHESIA CONTROL METHOD AND ANESTHESIA CONTROL SYSTEM | Final Rejection | SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD. |
| 18600192 | ENGAGEMENT MECHANISM FOR VAPORIZER IN ANESTHESIA MACHINE | Non-Final OA | GE Precision Healthcare LLC |
| 17682816 | SYSTEMS AND METHODS FOR DETECTING USAGE INFORMATION FOR A SENSOR | Final Rejection | GE Precision Healthcare LLC |
| 18572903 | INSTRUMENT | Non-Final OA | LEMON inc. |
| 18267321 | WEARABLE AIR PURIFIER | Non-Final OA | Dyson Technology Limited |
| 18466702 | MASSAGE DEVICE HAVING VARIABLE STROKE LENGTH | Final Rejection | HYPERICE IP SUBCO, LLC |
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