| Patents Granted on 1821-11-?? |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 3,398X | Nov. 02, 1821 | T. Whaley | Sliding door locks and bolts | household tools |
| 3,399X | Nov. 07, 1821 | W. Winning | Improvement in ladies' reticules | |
| 3,400X | Nov. 10, 1821 | C.M. Graham | Improvement in fire grates, called the caloret | household tools |
| 3,401X | Nov. 10, 1821 | J. Humes | Machine for digging canals, roads, etc. | |
| 3,402X | Nov. 13, 1821 | B. Mestayer | Machine for cutting the tops and bottoms of band boxes | |
| 3,403X | Nov. 15, 1821 | P.F. Herbin | Metallic reeds for weavers | weaver |
| 3,404X | Nov. 16, 1821 | W. Pye | Andirons | household tools |
| 3,405X | Nov. 16, 1821 | C. Williams | Rail ways | |
| 3,406X | Nov. 17, 1821 | O. Phelps | Elastic floor for propelling boats | nautical propulsion apparatus |
| 3,407X | Nov. 17, 1821 | G. Moorehouse, O. Phelps | Plough | plows |
| 3,408X | Nov. 22, 1821 | E. Trask, J. Trask | Bark mill | bark processing machines |
| NX-182,111,221 | Nov. 22, 1821 | B. Fenny | Chair, Improvement in the Rocking Sofa | chairs |
| 3,409X | Nov. 30, 1821 | T. Skidman (Skidmore) | Boilers for steam engines | stationary boilers |
