| Patents for Royal Master Grinders, Inc. |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 3,108,407 | Oct. 29, 1963 | D.C. Hughes | Centerless Grinder | centerless grinders |
| 3,113,563 | Dec. 10, 1963 | D.C. Hughes | Grinding Wheel Crush Dressing Apparatus | grinder dressers |
| 5,746,644 | May 05, 1998 | C.J. Cheetham | Centerless Grinder Assembly and Method of Operating the Same | centerless grinders |
| 6,144,892 | Nov. 07, 2000 | C.J. Humme, C.J. Cheetham | Gauging System | measuring tools |
| 6,227,938 | May 08, 2001 | E. Smith, B.M. Olevskiy, C.J. Cheetham | Guidewire Position Locator | centerless grinders |
| 6,312,314 | Nov. 06, 2001 | E. Smith, B.M. Olevskiy, C.J. Cheetham | Guidewire Position Locator | centerless grinders |
| 7,147,542 | Dec. 12, 2006 | T. Morris, K. Jobes, J. Memmelaar, Sr. | Centerless Grinder | centerless grinders |
| 7,585,206 | Sep. 08, 2009 | J.R. Memmelaar, Jr. | Spool to Spool Continuous Through Feed System | centerless grinders |
| D824,416 | Jul. 31, 2018 | A.S. Bunagan, J.R. Memmelaar, Jr. | Display Screen With Animated Graphical User Interface | machine tool controls |
