Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10240838 | Variable speed compressor control with sound-controlled defrost mode | Jacob A. Groshek, Simon David Hart | 2019-03-26 |
| 10060035 | Cladding apparatus and method | Donald G. Johnson | 2018-08-28 |
| 9919382 | Cladding apparatus and method | Donald G. Johnson | 2018-03-20 |
| 9586289 | Cladding apparatus and method | Donald G. Johnson | 2017-03-07 |
| 9476626 | Variable speed compressor control with lost rotor mitigation | Jacob A. Groshek, Simon David Hart | 2016-10-25 |
| 4780590 | Laser furnace and method for zone refining of semiconductor wafers | Donald B. Griner, Frederick W. zur Burg | 1988-10-25 |
| 4622675 | Forced transport molecular gas laser and method | — | 1986-11-11 |
| 4617667 | Gas laser tube assembly | — | 1986-10-14 |