| Patents for George A. Hoffman | 
| Patents 1 - 
					9
					of 9 
       | 
| Number | Date | Patentee | Title | Type | 
| 627,299 | Jun. 20, 1899 | F.G. Echols | Metal-working machine | milling machines | 
| 639,560 | Dec. 19, 1899 | B.M. Hanson | Caliper Attachment | measurement gauges | 
| 1,017,132 | Feb. 13, 1912 | J. Burke | Self-oiling bearing | motor bearings | 
| 1,026,904 | May 21, 1912 | J. Burke | Electric motor | blowers | 
| 1,033,379 | Jul. 23, 1912 | J. Burke | Dynamo-electric machine | electric motors | 
| 1,062,883 | May 27, 1913 | J. Burke | Electric riveting-machine | riveting machines | 
| 1,072,422 | Sep. 09, 1913 | J. Burke | Electric controlling apparatus | motor controls | 
| 1,073,662 | Sep. 23, 1913 | J. Burke | Means for controlling synchronous machines | synchronous motors | 
| 1,185,366 | May 30, 1916 | J. Burke | Dynamo-electric machine | motor stators |