Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D844684 | Rotatable cutting bit | — | 2019-04-02 |
| 9702251 | Cutting tool assembly including retainer sleeve with retention member | — | 2017-07-11 |
| 9074471 | Insert with offset apex for a cutter bit and a cutter bit having the same | — | 2015-07-07 |
| D659529 | Washer | Don C. Rowlett | 2012-05-15 |
| 7959234 | Rotatable cutting tool with superhard cutting member | Vernon B. Cameron, Don C. Rowlett | 2011-06-14 |
| 7458646 | Rotatable cutting tool and cutting tool body | Anirudda S. Marathe, Jonathan W. Bitler, Ray C. MacIntyre | 2008-12-02 |
| 7413257 | Rotatable cutting tool with reverse tapered body | — | 2008-08-19 |
| 7380888 | Rotatable cutting tool having retainer with dimples | — | 2008-06-03 |
| 7360845 | Cold-formed rotatable cutting tool and method of making the same | — | 2008-04-22 |
| 6478383 | Rotatable cutting tool-tool holder assembly | Kirk Webb | 2002-11-12 |
| 6375272 | Rotatable cutting tool insert | — | 2002-04-23 |
| D387072 | Three-finned point attack mining bit | — | 1997-12-02 |
| 5529384 | Bit holder block and cutter bit therefor | Douglas E. Bise | 1996-06-25 |
| 5503463 | Retainer scheme for cutting tool | — | 1996-04-02 |
| 5303984 | Cutting bit holder sleeve with retaining flange | — | 1994-04-19 |
| 5273343 | Non-rotatable sleeve for a cutting tool bit holder and method of making the same | — | 1993-12-28 |
| 5251964 | Cutting bit mount having carbide inserts and method for mounting the same | — | 1993-10-12 |
| 4836614 | Retainer scheme for machine bit | — | 1989-06-06 |
| 4787464 | Variable rake mine tool insert and method of use | — | 1988-11-29 |
| 4743069 | Rotatable cutting bit | — | 1988-05-10 |
| 4728153 | Cylindrical retainer for a cutting bit | John Anderson | 1988-03-01 |
| 4547020 | Rotatable cutting bit | — | 1985-10-15 |
| 4497520 | Rotatable cutting bit | — | 1985-02-05 |
| 4339006 | Method and apparatus for mine roof drilling | Arnold B. Bower, Jr. | 1982-07-13 |