Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9518665 | Ball valve for cold fluids | — | 2016-12-13 |
| 8191857 | Linear motor valve | Erik J. Guldberg, William H. Yeadon, Bradley M. Frustaglio | 2012-06-05 |
| 7669609 | Universal refrigeration valve | Eric J. Guldberg | 2010-03-02 |
| 6989709 | CMOS low voltage high-speed differential amplifier | Delbert R. Cecchi, Curtis Walter Preuss | 2006-01-24 |
| 6460567 | Sealed motor driven valve | John A. Yencho, Martin F. Kozi, Orval Kuhn | 2002-10-08 |
| 6244561 | Modulating expansion valve | John A. Yencho, Jeffrey A. Mackowiak, Santosh Kumar | 2001-06-12 |
| 6240948 | Rupture disk assembly | John A. Yencho, Orval Kuhn | 2001-06-05 |
| 5438730 | Valve handle and method of fastening same to a valve stem | — | 1995-08-08 |
| 5031068 | Liquid level control system for refrigeration apparatus | John A. Yencho, William J. Barbier, Curtis H. Knapp, Orval Kuhn | 1991-07-09 |
| 4809129 | Liquid level control system for refrigeration apparatus | John A. Yencho, William J. Barbier, Curtis H. Knapp, Orval Kuhn | 1989-02-28 |
| 4647740 | Float switch assembly for refrigeration system | John A. Yencho | 1987-03-03 |
| 4550896 | Valve-strainer housings and assemblies | — | 1985-11-05 |