Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11408284 | System and method for supporting sidewalls or ribs in coal mines | David J. Nardo | 2022-08-09 |
| 11292702 | Nut and a method of use of the nut in a fastener system for crane mats | Joseph E. Bryan | 2022-04-05 |
| 11105199 | System and method for supporting sidewalls or ribs in coal mines | David J. Nardo | 2021-08-31 |
| 10773933 | Nut and a method of use of the nut in a fastener system for crane mats | Joseph E. Bryan | 2020-09-15 |
| 10392234 | Nut and a method of use of the nut in a fastener system for crane mats | Joseph E. Bryan | 2019-08-27 |
| 9435097 | Method for joining plastic parts and foundation mat product therefor | — | 2016-09-06 |
| 8790044 | Tensionable tubular resin anchored tubular bolt and method | — | 2014-07-29 |
| 6039509 | Mine roof support apparatus and method | — | 2000-03-21 |
| 5647694 | Mine roof support apparatus and method | — | 1997-07-15 |
| 5526720 | Wrench device for mine roof bolts | — | 1996-06-18 |
| 5387060 | Tubular mining bolt | — | 1995-02-07 |
| 5378087 | Mine roof support apparatus and method | — | 1995-01-03 |
| 5375946 | Mine roof support apparatus and method | — | 1994-12-27 |
| 5114278 | Mining bolt apparatus and method | Robert Bechtold | 1992-05-19 |
| 5042961 | Roof bolt with helical coil and bail anchor | Ralph F. Scott | 1991-08-27 |
| 4984938 | Coated washer for an anchor bolt system | Ralph F. Scott | 1991-01-15 |
| 4708559 | Reinforcing washer for a mine roof bolt assembly | — | 1987-11-24 |
| 4704053 | Versatile roof bolt assembly | Edward C. Hipkins, Sr. | 1987-11-03 |
| 4679967 | Truss bracket | Edward C. Hipkins, Sr. | 1987-07-14 |
| 4655645 | Method and apparatus for anchoring roof bolts | Edward C. Hipkins, Sr., Joseph D. Comfort | 1987-04-07 |
| 4477209 | Anchor bolt assembly | Edward C. Hipkins, Jr. | 1984-10-16 |