Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10920801 | Blow down actuator assembly | Christopher L. Fenn | 2021-02-16 |
| 10683880 | Blow down actuator assembly having a drag brake | Christopher L. Fenn | 2020-06-16 |
| 10626545 | Embedding nanoparticles in thermoplastic polymers | Tofail Ansar Md. Syed, Jacek Zeglinski, Halina Podbielska, Ewa Dworniczek, Peter Tiernan +3 more | 2020-04-21 |
| 10458442 | Blow down actuator assembly | Christopher L. Fenn | 2019-10-29 |
| 9790969 | Blow down actuator assembly | Christopher L. Fenn | 2017-10-17 |
| 9080655 | No-lash nut assembly | Alexander Margolin, Joseph H. Nook, Jr. | 2015-07-14 |
| 8726870 | Rotational energy heat generation apparatus and methods | — | 2014-05-20 |
| 6901869 | Picker assembly for potato planter | — | 2005-06-07 |
| 6293479 | Feed control hydraulic circuit for wood chipper attachment | Wally L. Kaczmarski, Verne C. Watts, David S. Majkrzak | 2001-09-25 |
| 5240189 | Debris shredder and rotor | David S. Majkrzak, Duane J. Antonsen | 1993-08-31 |