| Recently added or edited patents |
Patents 1 -
15
of 783
      |
| Modified | Number | Grant Date | Patentee | Title | Type |
| 2026-01-01 | 2,277,213 | Mar. 24, 1942 | W.F. Dalzen | Thread grinding machines | thread grinders |
| 2025-12-31 | 2,235,558 | Mar. 18, 1941 | A.L. Krause, M.I. Mathewson | Grinding Machine | cylindrical grinders |
| 2025-12-31 | 619X | May 10, 1805 | J. Humiston, Jr. | Sluice to Convey the Water to Horizontal Wheels and in the Manner of Forming the Wheels of Cast Iron | water wheels |
| 2025-12-31 | 1,364,747 | Jan. 04, 1921 | E.T. Gorham | Universal drill-grinder | drill grinders |
| 2025-12-31 | 1,295,156 | Feb. 25, 1919 | E.T. Gorham | Cutter-grinder | cutter grinding machines |
| 2025-12-31 | 743,033 | Nov. 03, 1903 | C. Ridderhof | Drill-grinding machine | drill grinders |
| 2025-12-31 | 702,885 | Jun. 17, 1902 | C. Ridderhof | Drill-grinding machine | drill grinders |
| 2025-12-31 | 697,584 | Apr. 15, 1902 | H.P. White | Drill-grinding machine | drill grinders |
| 2025-12-31 | 829,488 | Aug. 28, 1906 | C. Ridderhof | Mandrel-press | screw presses |
| 2025-12-31 | 691,488 | Jan. 21, 1902 | C. Ridderhof | Friction-clutch for counter-shafts | friction clutches |
| 2025-12-31 | 684,890 | Oct. 22, 1901 | H.P. White | Drill-grinder | drill sharpening machines |
| 2025-12-31 | 1,596,702 | Aug. 17, 1926 | A. Williams | Micrometer adjustment for worktables of grinding machines | surface grinders |
| 2025-12-31 | 1,095,223 | May 05, 1914 | D.M. Rose | Woodworking-machines | matchers |
| 2025-12-31 | 1,596,701 | Aug. 17, 1926 | A. Williams | Truing device for grinding wheels | |
| 2025-12-31 | 1,558,525 | Oct. 27, 1925 | A. Williams | Grinding machine | surface grinders |
