| Patents Granted on 1808-05-?? |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 867X | May 14, 1808 | E. King | Washing machine | washing machines |
| 868X | May 14, 1808 | R. Ainsworth | Making pearl ash in kettles without the use of ovens | |
| 869X | May 14, 1808 | W. Flower | Life buoy, or seaman's friend | |
| 870X | May 16, 1808 | J. Bailey, Jr. | Friction roller door hinge | |
| 871X | May 16, 1808 | W. Rhodes | Pumps | plumber |
| 872X | May 16, 1808 | W. Rhodes | Floating dry dock for cleansing the bottoms of vessels | |
| 873X | May 18, 1808 | S.B. Willard | Churn | churns |
| 874X | May 21, 1808 | R.P. Cunningham | Cheese press | cheese press |
