Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8528395 | Monitoring fluid pressure in a well and retrievable pressure sensor assembly for use in the method | Neil Griffiths | 2013-09-10 |
| 8353095 | Self feeding drill press lathe attachment | — | 2013-01-15 |
| 8186475 | Suspended operator platform | David J. Sugden | 2012-05-29 |
| 7478689 | Vehicle steering and speed control | David J. Sugden | 2009-01-20 |
| 7464763 | Method of injecting lift gas and gas lift flow control device | Arthur William Galloway, Joseph L. Johnson, Gary Nettleship | 2008-12-16 |
| 7377022 | Drill press lathe attachment | — | 2008-05-27 |
| 7259688 | Wireless reservoir production control | John Michele Hirsch, George Leo Stegemeier, Harold J. Vinegar, Robert Rex Burnett, Frederick Gordon Carl, Jr. +1 more | 2007-08-21 |
| 7147059 | Use of downhole high pressure gas in a gas-lift well and associated methods | John Michele Hirsch, George Leo Stegemeier, Harold J. Vinegar, Robert Rex Burnett, William Mountjoy Savage +1 more | 2006-12-12 |
| 6958704 | Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters | Harold J. Vinegar, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl, Jr., John Michele Hirsch | 2005-10-25 |
| 6840317 | Wireless downwhole measurement and control for optimizing gas lift well and field performance | John Michele Hirsch, George Leo Stegemeier, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl, Jr. | 2005-01-11 |
| 6633236 | Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters | Harold J. Vinegar, Robert Rex Burnett, William Mountjoy Savage, Frederick Gordon Carl, Jr., John Michele Hirsch | 2003-10-14 |
| 6481149 | Transparent fishing hook including transparent structural coating | Deborah K. Hall, James W. Hall, Stephan S. Vylasek | 2002-11-19 |
| D446050 | Cabinet | Irving Sabo | 2001-08-07 |
| 6192666 | Lawn mower | David J. Sugden, Kevin Boeck, Todd R. Wanie | 2001-02-27 |
| 5586033 | Control system with neural network trained as general and local models | — | 1996-12-17 |
| 5342239 | Operation parameters for an axial separator | Neil L. West, Mark F. Stickler, Richard L. Day | 1994-08-30 |
| 5005597 | Street cleaning device for collecting leaves and debris | Maurice A. Popelier, Myron L. McCunn, David C. Winter, Dennis L. Marchael, Ronald E. Rohren | 1991-04-09 |
| D311921 | Off-road utility vehicle for lawn care | Maurice A. Popelier, William E. Crookes, Kevin F. Thompson | 1990-11-06 |
| 4887420 | Modular mower deck with light-weight housing | John Robert Cerny, Jr., Jay H. Olson, Leon P. Erdman | 1989-12-19 |
| 4884994 | Axial flow rotary separator | Maurice A. Popelier, Josef W. Klimmer, Neil L. West, Loren W. Peters | 1989-12-05 |
| 4802501 | Portable shelter | — | 1989-02-07 |
| 4683747 | Timing device | — | 1987-08-04 |
| 4640386 | Folding utility horse | — | 1987-02-03 |
| 4611605 | Axial flow rotary separator | Maurice A. Popelier, Daniel L. Leemans | 1986-09-16 |
| 4611606 | Feeding arrangement for an axial flow rotary separator | Maurice A. Popelier | 1986-09-16 |