Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11365912 | Suction duct and multiple suction ducts inside a shell of a flooded evaporator | Jon P. Hartfield, Steven E. Meloling, Florian Weber, Alain Fleurette, Benjamin Elias Dingel | 2022-06-21 |
| 10627139 | Suction duct and multiple suction ducts inside a shell of a flooded evaporator | Jon P. Hartfield, Steven E. Meloling, Florian Weber, Alain Fleurette, Benjamin Elias Dingel | 2020-04-21 |
| 10480872 | Turbulators in enhanced tubes | Jon P. Hartfield, Todd A. Michael | 2019-11-19 |
| 7421855 | Gas trap distributor for an evaporator | Kenneth J. Schultz, Steven J. Pitts, Ronald Maurice Cosby, II, Brian T. Sullivan | 2008-09-09 |
| 6516627 | Flowing pool shell and tube evaporator | Jon P. Hartfield, Sean A. Smith, William J. Peck | 2003-02-11 |
| 5778695 | Liquid level sensor using refrigrant subcooling | Jon P. Hartfield | 1998-07-14 |
| 5507151 | Noise reduction in screw compressor-based refrigeration systems | Martin J. Scholze | 1996-04-16 |
| 4884590 | Electric motor driven air valve | David H. Eber | 1989-12-05 |
| 4775133 | Electric air valve | Dennis L. Manthei, Steven C. Weber | 1988-10-04 |
| 4749000 | Normally open pneumatic air valve | Dennis L. Manthei, Steven C. Weber | 1988-06-07 |
| 4749001 | Normally closed pneumatic air valve | Dennis L. Manthei, Steven C. Weber | 1988-06-07 |
| 4283008 | Pressurized signal control apparatus | — | 1981-08-11 |
| 4231515 | Pressurized control signal apparatus | — | 1980-11-04 |