Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D841733 | Educational apparatus for learning math | — | 2019-02-26 |
| 9880582 | Educational apparatus for learning math as well as components therefor and methods including the same | — | 2018-01-30 |
| 6978548 | Power operated rotary knife | Jeffrey A. Whited, Robert L. Leimbach | 2005-12-27 |
| 6751872 | Power operated rotary knife | Jeffrey A. Whited, Robert L. Leimbach | 2004-06-22 |
| 6655033 | Pneumatic hand tool with improved control valve | Geoffrey D. Rapp, Shawn A. Mills | 2003-12-02 |
| 6367156 | Blades for hand held power operated shears | Arthur W. Zimmermann | 2002-04-09 |
| 5950313 | Blades for hand held power operated shears | Arthur W. Zimmerman | 1999-09-14 |
| 5918371 | Blades for hand held power operated shears | Arthur W. Zimmerman | 1999-07-06 |
| D397923 | Scissor blade yoke for power shears | Arthur W. Zimmerman | 1998-09-08 |
| D389385 | Handle for power shears | Thomas M. Prast | 1998-01-20 |
| 5476119 | Hand held power operated shears | — | 1995-12-19 |
| 5375330 | Hand held power operated shears | — | 1994-12-27 |
| 5146628 | Slip-resistant protective glove and method for manufacturing slip-resistant glove | Keith A. Furgalus | 1992-09-15 |
| 4887830 | Wheelchair with combined wheel lock and hill holder | Gerald Fought | 1989-12-19 |
| 4834413 | Quick release handle | Nathalal G. Patel, Thomas Tuckowski | 1989-05-30 |
| 4799599 | Specimen cup and cap assembly for clinical analyzer | — | 1989-01-24 |
| 4737342 | Test module | Harry F. DeBevec, Randolph Bradshaw, Peter Botten | 1988-04-12 |
| D271619 | Specimen cup assembly for a clinical chemistry analyzer | — | 1983-11-29 |
| D271520 | Dilution vessel | — | 1983-11-22 |