Group 1770: Chemical Apparatus, Separation, and Purification
Art units in this work group.
- Active examiners
- 149
- Grant ratio
- 63.8%
- Average office actions per grant
- 1.90
Art units
| Art Unit 1771 | 22 | 61.0% | 2.07 |
|---|---|---|---|
| Art Unit 1772 | 35 | 66.4% | 1.83 |
| Art Unit 1773 | 34 | 59.6% | 1.96 |
| Art Unit 1774 | 25 | 67.9% | 1.80 |
| Art Unit 1775 | 18 | 49.6% | 2.17 |
| Art Unit 1776 | 27 | 69.9% | 1.63 |
| Art Unit 1777 | 24 | 59.3% | 2.14 |
| Art Unit 1778 | 12 | 69.9% | 1.81 |
| Art Unit 1779 | 21 | 52.7% | 2.29 |
Examiner distribution
- Median grant ratio
- 58.4%
- Middle 50% of grant ratios
- 46.8%–68.5%
- Median office actions / grant
- 2.01
- Middle 50% of office actions / grant
- 1.66–2.30
Active examiners with at least 20 applications.
Based on available public USPTO records; may be incomplete.