Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6213028 | Increased capacity railway car | Donald B. Fetterman | 2001-04-10 |
| 6189456 | High capacity axle for railway freight cars | John W. Coulborn | 2001-02-20 |
| 6138581 | Railway gondola car | John W. Coulborn | 2000-10-31 |
| 5710400 | Rotary multiple capacitive switch | Edwin D. Lorenz | 1998-01-20 |
| 5587680 | Pulse generator with charge pump | — | 1996-12-24 |
| 5584252 | Railway freight car | Joseph C. Lightner, Jr. | 1996-12-17 |
| 5562046 | Load bearing crossbearer connection | D. Bruce Fetterman | 1996-10-08 |
| 5511491 | Railway car | Harold E. Hesch, Albert A. Beers | 1996-04-30 |
| 5430607 | Rugged modular portable computer including modules hinged along an edge | — | 1995-07-04 |
| 5392717 | Railway car | Harold E. Hesch, Albert A. Beers | 1995-02-28 |
| 5341747 | Railway gondola car | D. Bruce Fetterman | 1994-08-30 |
| 5338260 | Children's swing | — | 1994-08-16 |
| D344913 | Railway gondola car | Donald B. Fetterman | 1994-03-08 |
| D343671 | Swing seat | — | 1994-01-25 |
| D341389 | Bouncing horse | Robert J. Boudreau, Russell J. Coddington, Jr., Joel C. Cunard | 1993-11-16 |
| 5178074 | Railway gondola car | Donald B. Fetterman | 1993-01-12 |
| 5054802 | Bicycle frame | — | 1991-10-08 |
| D317142 | Bicycle | — | 1991-05-28 |
| 4893067 | Direct current motor speed control | Pradeep M. Bhagwat, Duronie Harrell, Samuel G. Woods | 1990-01-09 |
| 4875552 | Modular elevator cab construction | Gilbert E. Londeen, Christopher Lair | 1989-10-24 |
| 4875553 | Modular elevator cab construction | Gilbert E. Londeen, Christopher Lair | 1989-10-24 |
| 4779707 | Modular elevator cab construction | Gilbert E. Londeen, Christopher Lair | 1988-10-25 |
| 4737661 | Variable speed trigger switch | William R. Lessig, III, Dale K. Wheeler, R. Roby Bailey | 1988-04-12 |
| 4734629 | Variable speed trigger switch | William R. Lessig, III, Dale K. Wheeler, R. Roby Bailey | 1988-03-29 |
| D291292 | Child's racing bike | Joel C. Cunard | 1987-08-11 |