Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7219752 | System and method for damping vibration in a drill string | Mark Ellsworth Wassell, Daniel E. Burgess, Carl Allison Perry | 2007-05-22 |
| 6896050 | Latching system for maintaining position of component within a downhole drill string section | Denis P. Biglin, Jr., Daniel E. Burgess, Carl Allison Perry, Thomas Floyd Rzasa, Ronald Seppa | 2005-05-24 |
| D492109 | Tool belt having nail coil pouches | William Turner | 2004-06-29 |
| 6714138 | Method and apparatus for transmitting information to the surface from a drill string down hole in a well | Denis P. Biglin, Jr. | 2004-03-30 |
| 6698632 | Nail coil and tool holding assembly | William Turner | 2004-03-02 |
| 6484364 | Lifting assembly | — | 2002-11-26 |
| 6270683 | Swimming pool skimming apparatus | — | 2001-08-07 |
| 6134892 | Cooled electrical system for use downhole | Ronald Seppa, William Edward Turner, Alan J. Sallwasser | 2000-10-24 |
| 6105690 | Method and apparatus for communicating with devices downhole in a well especially adapted for use as a bottom hole mud flow sensor | Denis P. Biglin, Jr., Walter A. Helm | 2000-08-22 |
| 6102681 | Stator especially adapted for use in a helicoidal pump/motor | — | 2000-08-15 |
| 5931000 | Cooled electrical system for use downhole | Ronald Seppa, William Edward Turner | 1999-08-03 |
| 5927409 | Apparatus for joining sections of pressurized conduit | — | 1999-07-27 |
| 5833541 | Elastomeric joints having interlocking threaded portions | Russell D. Ide | 1998-11-10 |
| 5816344 | Apparatus for joining sections of pressurized conduit | — | 1998-10-06 |
| D372673 | Storage box | — | 1996-08-13 |
| 5135059 | Borehole drilling motor with flexible shaft coupling | Peter R. Harvey | 1992-08-04 |
| 5074681 | Downhole motor and bearing assembly | Lynn Lee, Mark D. Zitka | 1991-12-24 |
| D297988 | Shelf unit for supporting electrical equipment | John R. Maurer | 1988-10-11 |
| D289636 | Frame for telephone wire terminal blocks | John R. Maurer | 1987-05-05 |