Bise; Douglas E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bise; Douglas E..The latest application filed is for "stepped drill bit assembly".
- Bise; Douglas E. - Chilhowie PA
- Bise; Douglas E. - Chillhowie VA
| Patent | Date |
|---|---|
| Stepped Drill Bit Assembly App 20130213717 - Bise; Douglas E. | 2013-08-22 |
| Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit Grant 8,002,054 - Swope , et al. August 23, 2 | 2011-08-23 |
| Roof drill bit, roof drill bit body and hard cutting insert for roof drill bit App 20100187019 - Swope; Chad A. ; et al. | 2010-07-29 |
| Countersink roof bit drill and method for using the same Grant 7,708,087 - Stables , et al. May 4, 2 | 2010-05-04 |
| Countersink Roof Bit Drill And Method For Using The Same App 20080251296 - Stables; Brandon S. ; et al. | 2008-10-16 |
| Coupler and roof drill bit assembly using such coupler Grant 7,207,400 - Bise , et al. April 24, 2 | 2007-04-24 |
| Coupler and roof drill bit assembly using such coupler App 20050224259 - Bise, Douglas E. ; et al. | 2005-10-13 |
| Roof bit and insert assembly Grant 6,945,340 - Bise , et al. September 20, 2 | 2005-09-20 |
| Earth penetrating rotary drill bit with helical ports Grant 6,915,867 - Bise July 12, 2 | 2005-07-12 |
| Liquid seal for wet roof bit Grant 6,886,645 - Bise , et al. May 3, 2 | 2005-05-03 |
| Monolithic roof cutting bit insert Grant 6,860,344 - Bise , et al. March 1, 2 | 2005-03-01 |
| Earth penetrating rotary drill bit with helical ports App 20040262045 - Bise, Douglas E. | 2004-12-30 |
| Roof bit and insert assembly App 20040089481 - Bise, Douglas E. ; et al. | 2004-05-13 |
| Roof bit body and insert assembly Grant 6,684,968 - Bise , et al. February 3, 2 | 2004-02-03 |
| Drill bit, hard member, and bit body Grant 6,595,305 - Dunn , et al. July 22, 2 | 2003-07-22 |
| Liquid seal for wet roof bit App 20030051920 - Bise, Douglas E. ; et al. | 2003-03-20 |
| Roof bit body and insert assembly App 20020195280 - Bise, Douglas E. ; et al. | 2002-12-26 |
| Monolithic roof bit cutting bit insert App 20020195279 - Bise, Douglas E. ; et al. | 2002-12-26 |
| Cutting toolholder with recessed groove for cutting tool removal Grant 6,244,665 - Bise , et al. June 12, 2 | 2001-06-12 |
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