Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6508490 | Universal pipe-tank connection assembly | — | 2003-01-21 |
| 6181111 | Permanent magnet alternator system for battery charging | Lowell T. Hoffman | 2001-01-30 |
| 5949330 | Method and apparatus for displaying sensor outputs in a diagnostic system | Ricky D. Vance, Dennis A. Barney | 1999-09-07 |
| D384341 | Vehicle computer monitoring system screen and display | Dennis A. Barney, Joseph G. Kozlevcar | 1997-09-30 |
| 5646373 | Apparatus for improving the power dissipation of a semiconductor device | Larry C. Collins, James G. Cook | 1997-07-08 |
| 5546264 | Reverse voltage protection circuit | Gregory L. Williamson | 1996-08-13 |
| 5541806 | Dual current sensing driver circuit with switching energization andflyback current paths | — | 1996-07-30 |
| 5457435 | Pulse width modulated driver | — | 1995-10-10 |
| 5453939 | Computerized diagnostic and monitoring system | Ricky D. Vance, Dennis A. Barney, Joseph G. Kozlevcar | 1995-09-26 |
| 5401004 | Method and apparatus for installing a nozzle insert in a steelmaking ladle | Alvin M. Nestler, John Lewis Hogan, III, Edward T. Witek | 1995-03-28 |
| 5374917 | Computerized monitoring system having a programmable gauge | Ricky D. Vance, Dennis A. Barney, Joseph G. Kozlevcar | 1994-12-20 |
| 5371487 | Method and apparatus for indicating a changed condition | Ricky D. Vance, Dennis A. Barney | 1994-12-06 |
| 5369392 | Method and apparatus for indicating faults in switch-type inputs | Ricky D. Vance | 1994-11-29 |
| 5361059 | Method and apparatus for modifying the functionality of a gauge | Ricky D. Vance, Dennis A. Barney, Joseph G. Kozlevcar | 1994-11-01 |
| 5337470 | Method and apparatus for removing a nozzle insert from a steelmaking ladle | Alvin M. Nestler, Edward T. Witek, Donald J. Idstein | 1994-08-16 |
| 5335896 | Nozzle insert for a steelmaking ladle | Donald J. Idstein, Harry J. Beesley | 1994-08-09 |
| 5327344 | Method and apparatus for reconfiguring a computerized monitoring system | Ricky D. Vance, Dennis A. Barney, Joseph G. Kozlevcar | 1994-07-05 |
| 5321875 | Well block centering tool | Alvin M. Nestler, Donald J. Idstein | 1994-06-21 |
| 5040119 | Draft control apparatus and method | Gerald D. Hardy, Larry E. Kendrick, Stephen W. Rector | 1991-08-13 |
| 4982315 | Voltage multiplier circuit | — | 1991-01-01 |
| 4967309 | Dual current sensing driver circuit | — | 1990-10-30 |
| 4852657 | Apparatus for selectively positioning movable work element with preselected maximum velocity control | Gerald D. Hardy, Larry E. Kendrick | 1989-08-01 |
| 4718644 | Slag sensor taphole assembly | David G. Hill, Thomas Y. Ballock, Roger E. Mays | 1988-01-12 |
| 4682151 | Position to duty cycle conversion apparatus and method | — | 1987-07-21 |
| 4661766 | Dual current sensing driver circuit | Weldon L. Phelps | 1987-04-28 |