Issued Patents All Time
Showing 76–100 of 108 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6327897 | Method of introducing an in situant into a vapor compression system, especially useful for leak detection, as well as an apparatus for leak detection and a composition useful for leak detection | Lawrence R. Grzyll, Dwight D. Back, Joseph E. Mayer, John A. Meyer | 2001-12-11 |
| 6327731 | Clothes washer and dryer system for recycling and reusing graywater | Dwight D. Back, Gregory S. Cole | 2001-12-11 |
| 6308523 | Simplified subcooling or superheated indicator and method for air conditioning and other refrigeration systems | — | 2001-10-30 |
| 6303039 | Method for treating water over an extended time using tablets and packets | Dwight D. Back, John A. Meyer | 2001-10-16 |
| 6269667 | Clothes washer and dryer system for recycling and reusing gray water | Dwight D. Back, Gregory S. Cole | 2001-08-07 |
| 6205803 | Compact avionics-pod-cooling unit thermal control method and apparatus | — | 2001-03-27 |
| 6170320 | Method of introducing an additive into a fluid system, especially useful for leak detection, as well as an apparatus for leak detection and a composition useful for leak detection | Lawrence R. Grzyll, Dwight D. Back, Joseph E. Mayer | 2001-01-09 |
| 5996651 | Method and apparatus for introducing liquid additive into vapor-compression systems | — | 1999-12-07 |
| 5987902 | Additive for improving performance and cooling capacity of vapor compression systems | Lawrence R. Grzyll | 1999-11-23 |
| 5924847 | Magnetic bearing centrifugal refrigeration compressor and refrigerant having minimum specific enthalpy rise | Fulin Gui, Scott Benedict | 1999-07-20 |
| 5868937 | Process and system for recycling and reusing gray water | Dwight D. Back, Charlie Ramos, Nidal A. Samad, Steven D. Gann | 1999-02-09 |
| 5862675 | Electrically-driven cooling/heating system utilizing circulated liquid | Lawrence R. Grzyll, Steven D. Gann | 1999-01-26 |
| 5826436 | Additive for improving performance and cooling capacity of vapor compression systems | Lawrence R. Grzyll | 1998-10-27 |
| 5770048 | Method for removal of acid from compressor oil | Nidal A. Samad, Lawrence R. Grzyll | 1998-06-23 |
| 5647226 | Phase change apparatus for animal parts, human body parts, body fluids and culture | Lawrence R. Grzyll | 1997-07-15 |
| 5638689 | Portable refrigerant recovery system | Fulin Gui, Steven D. Gann | 1997-06-17 |
| 5617731 | Refrigerant recovery/recycling system | — | 1997-04-08 |
| 5603224 | Portable refrigerant recovery system | Fulin Gui, Steven D. Gann | 1997-02-18 |
| 5582020 | Chemical/mechanical system and method using two-phase/two-component compression heat pump | Fulin Gui, Lawrence R. Grzyll, Steve M Benner | 1996-12-10 |
| 5390659 | Flameless heater pad and tray systems | Lawrence R. Grzyll | 1995-02-21 |
| 5310326 | Rotary compressor with improved bore configuration and lubrication system | Fulin Gui | 1994-05-10 |
| 5291750 | Innovation adsorption heating and cooling device for micro-climate applications | Clyde F. Parrish | 1994-03-08 |
| 5289695 | Adsorption cooling device and method for hazardous materials suits | Clyde F. Parrish | 1994-03-01 |
| 5233840 | Method and apparatus for cooling refrigerant recovery system tanks and the like | — | 1993-08-10 |
| 5217063 | Thermal storage heat pipe | Lawrence R. Grzyll, Clyde F. Parrish | 1993-06-08 |