Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11480373 | Variable speed drive control for chiller coast-through | Curtis Christian Crane, Mark Robinson Bodell, II, Curtis G. Rager, John C. Hansen | 2022-10-25 |
| 10337781 | Variable speed drive control for chiller coast-through | Curtis Christian Crane, Mark Robinson Bodell, II, Curtis G. Rager, John C. Hansen | 2019-07-02 |
| 8820105 | Medium voltage power controller | John C. Hansen | 2014-09-02 |
| 8590329 | Medium voltage power controller | John C. Hansen | 2013-11-26 |
| 8544290 | Medium voltage variable speed drive for a chiller unit | — | 2013-10-01 |
| 7918099 | Medium voltage starter for a chiller unit | — | 2011-04-05 |
| 7640767 | Low voltage variable speed drive for application on medium/high voltage mains | Harold Robert Schnetzka | 2010-01-05 |
| 7424345 | Automated part procurement and service dispatch | — | 2008-09-09 |
| 7353662 | Medium voltage starter for a chiller unit | — | 2008-04-08 |
| 7295896 | Automated part procurement and service dispatch | — | 2007-11-13 |
| 6744061 | System and method for sensing movement in a compressor system | Mark A. Adams, Paul W. Snell, Alexander J. Soussa | 2004-06-01 |
| 6657217 | Probe for sensing movement in a compressor system | Mark A. Adams, Paul W. Snell, Alexander J. Soussa | 2003-12-02 |
| 5850160 | Gate drive circuit for an SCR | Harold Robert Schnetzka, Donald L. Tollinger | 1998-12-15 |
| 5555736 | Refrigeration system and method | Frank E. Wills | 1996-09-17 |
| 5460009 | Refrigeration system and method | Frank E. Wills | 1995-10-24 |
| 4965658 | System for mounting and cooling power semiconductor devices | Harold Robert Schnetzka | 1990-10-23 |
| 4895005 | Motor terminal box mounted solid state starter | Harold Robert Schnetzka | 1990-01-23 |
| 4554463 | Trigger circuit for solid state switch | Harold Robert Schnetzka | 1985-11-19 |
| 4499534 | Control system for controlling an SCR network to regulate three-phase A-C power flow | Harold Robert Schnetzka, Frank E. Wills | 1985-02-12 |
| 4355948 | Adjustable surge and capacity control system | Kenneth J. Kountz | 1982-10-26 |
| 4282718 | Evaporator inlet water temperature control system | Kenneth J. Kountz, Richard A. Erth | 1981-08-11 |
| 4282719 | Control system for regulating large capacity rotating machinery | Kenneth J. Kountz, Richard A. Erth | 1981-08-11 |
| 4275987 | Adjustable surge and capacity control system | Kenneth J. Kountz | 1981-06-30 |
| 4259845 | Logic control system for inverter-driven motor | — | 1981-04-07 |