| Patents for C. E. Doyle | 
| Patents 1 - 
					15
					of 28 
       | 
| Number | Date | Patentee | Title | Type | 
| 367,703 | Aug. 02, 1887 | L.P. Croswell | Wrench | pipe jaw attachments for wrenches | 
| 370,848 | Oct. 04, 1887 | A.J. Barber | Wrench | screw adjust wrenches | 
| 371,105 | Oct. 04, 1887 | J. Souders | Combined tack hammer and puller | combination tools | 
| 372,221 | Oct. 25, 1887 | J.H. Hubbard, W.B. Hubbard | Siding or Weather-Boarding Gage | clapboard markers | 
| 372,654 | Nov. 08, 1887 | L. Bryant | Ratchet Wrench | ratchet wrenches | 
| 374,928 | Dec. 20, 1887 | H. Bowhall | Wrench | quick adjust wrenches | 
| 377,755 | Feb. 14, 1888 | C. Leach, F.S. Hazelton | Wrench | pipe and nut combination wrenches | 
| 382,799 | May 15, 1888 | R. Copland | Pipe Wrench | pipe wrenches | 
| 384,743 | Jun. 19, 1888 | B.T. Bryan | Wrench | quick adjust wrenches | 
| 396,048 | Jan. 08, 1889 | H.W. Nott | Combined Shaft Holder and Wrench | combination tools | 
| 417,968 | Dec. 24, 1889 | A.J. Barber | Wrench | nut wrenches | 
| 489,032 | Jan. 03, 1893 | W.A. Osteen | Wrench | ratchet wrenches | 
| 490,789 | Jan. 31, 1893 | W.H. Huston | Combination Wrench | combination tools | 
| 496,941 | May 09, 1893 | W.T. King | Wrench | screw adjust wrenches | 
| 497,775 | May 23, 1893 | A.L. Dickinson | Jar Holder | jar wrenches |