| All Patents in class 81/440 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 50,021 | Sep. 19, 1865 | J.S. McCurdy | Improvement in Screw-Drivers | screwdriver blades |
| 187,600 | Feb. 20, 1877 | G. Collins | Combination Countersink, Screwdriver & Gimlet Bit | countersinks |
| 339,456 | Apr. 06, 1886 | W.L. Parmelee | Screw Driver | screwdrivers |
| 385,791 | Jul. 10, 1888 | F.B. Carpenter | Combined Bit, Countersink, and Screw-Driver | combination tools |
| 655,007 | Jul. 31, 1900 | W.K. Rairigh | Combination Tool | combination tools |
| 750,182 | Jan. 19, 1904 | Z.T. Furbish | Reversible Screw-Driver | screwdriver mechanisms |
| 1,215,308 | Feb. 06, 1917 | J.E. Johnson | Combination Tool | screwdriver handles |
| 1,560,834 | Nov. 10, 1925 | G.A. McMenimen | Tool Holder and Tool or Implement Therefor | tool holders |
| 1,656,259 | Jan. 17, 1928 | F.L. Young | Multi Blade Screwdriver | screwdriver blades |
| 1,796,083 | Mar. 10, 1931 | A.E. Carlberg | Wrench | socket wrenches |
| 2,662,568 | Dec. 15, 1953 | R.P. Lavietes | Multiple Blade Screw Driver | screwdriver blades |
| 2,804,970 | Sep. 03, 1957 | J. Kuc, A. Kuc | Wrench Holder | wrench set holders |
| 5,450,775 | Sep. 19, 1995 | B. Kozak | Multi-Function Driving Tool | screwdriver mechanisms |
| 5,791,211 | Aug. 11, 1998 | M.L. Petroske, D.A. Burda, B. Bondhus, M.D. Blackston, J.R. Bondhus | Folding hand tool set | wrench set holders |
| 5,970,828 | Oct. 26, 1999 | M.L. Petroske, D.A. Burda, B. Bondhus, M.D. Blackston, J.R. Bondhus | Folding hand tool set | wrench set holders |
