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| Art Unit: | 2878 — Radiant energy |
|---|---|
| Group: | 2870-2880 — Optics/Photocopying |
| Classes: |
250 — Radiant energy 850 — Scanning-probe techniques or apparatus; applications of scanning-probe techniques, e.g., scanning probe microscopy [spm] 382 — Image analysis 422 — Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing 430 — Radiation imagery chemistry: process, composition, or product thereof 378 — X-ray or gamma ray systems or devices 257 — Active solid-state devices (e.g., transistors, solid-state diodes) 355 — Photocopying 375 — Pulse or digital communications 118 — Coating apparatus |
| Phone: | Available with subscription |
| Email: | Available with subscription |
| Title: | Pat Examnr Physics |
| Service: | 18 years |
| Grade: | GS-13 |
| 3-Year Grant rate: | 94% over 492 cases |
|---|---|
| Difficulty: | Extremely Easy |
| Difficulty Percentile: | 8th
|
With Examiner Chang, you have a 94% chance of getting an issued patent by 3 years after the first office action. Examiner Chang is an extremely easy examiner and in the 8th percentile across all examiners (with 100th percentile most difficult).
Below is the grant rate timeline for Examiner Chang, where the timeline is relative to the date of the first office action. The three-year grant rate is the percentage of applications granted at three years after the first office action.
Examiner Chang's grant rate is higher than that of Art Unit 2878 and higher than that of the USPTO.
| Average Office Actions Per Grant | |
|---|---|
| Examiner Chang | 0.6 |
| Art Unit 2878 | 1.0 |
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Disclaimer: We do not provide any guarantees as to the accuracy of the statistics presented above and under
no circumstances will we be liable for any outcome resulting from your reliance on the above statistics.