Group 1770 - Chemical Apparatus, Separation and Purification
| Art Unit | Examiners Evaluated | Applications Evaluated | Grants Observed |
|---|---|---|---|
| 1771 | 24 | 14,124 | 8,861 |
| 1772 | 44 | 11,183 | 7,655 |
| 1773 | 54 | 9,619 | 5,892 |
| 1774 | 35 | 13,631 | 9,517 |
| 1775 | 25 | 2,803 | 1,390 |
| 1776 | 44 | 13,879 | 9,933 |
| 1777 | 32 | 11,068 | 6,542 |
| 1778 | 27 | 10,235 | 7,155 |
| 1779 | 41 | 5,785 | 3,164 |