| Patents for Robert L. Greenlee | 
| Patents 1 - 
					6
					of 6 
       | 
| Number | Date | Patentee | Title | Type | 
| 143,236 | Sep. 30, 1873 | R.L. Greenlee | Improvement in sash and door clamps | clamps | 
| 199,285 | Jan. 15, 1878 | R.L. Greenlee, R.S. Greenlee | Improvement in mortising and boring machines | drilling and boring | 
| CA-10,367 | Aug. 18, 1879 | R.L. Greenlee | Sash and door clamps | clamps | 
| 283,341 | Aug. 14, 1883 | R.S. Greenlee | Hollow-chisel mortising machine | mortising machines | 
| 326,640 | Sep. 22, 1885 | R.L. Greenlee, R.S. Greenlee | Machine-table | tablesaws | 
| 418,978 | Jan. 07, 1890 | R.L. Greenlee, R.S. Greenlee | Mortising-machine | mortising machines |