Peter W. Freund
15Patents
10h-index
15Co-inventors
69Inventor score
Filing activity: Jul 27, 1992 → Jun 22, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6095427A | Temperature control system and method for efficiently obtaining and maintaining the temperature in a conditioned space | Mechanical Engineering; Lighting; Heating | 139 | Expired |
| US5596878A | Methods and apparatus for operating a refrigeration unit | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US6718781B2 | Refrigeration unit apparatus and method | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5410889A | Methods and apparatus for operating a refrigeration system | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US5228301A | Methods and apparatus for operating a refrigeration system | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US5598718A | Refrigeration system and method utilizing combined economizer and engine coolant heat exchanger | Performing Operations; Transporting | 31 | Expired |
| US7143594B2 | Control method for operating a refrigeration system | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5408836A | Methods and apparatus for operating a refrigeration system characterized by controlling engine coolant | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US6401864B1 | Collapsible stabilizing devices | Fixed Constructions | 14 | Expired |
| US5465587A | Methods and apparatus for operating a refrigeration system characterized by controlling engine coolant | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5477695A | Methods and apparatus for operating a refrigeration system characterized by controlling engine coolant | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US9062903B2 | Economizer combined with a heat of compression system | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US9612042B2 | Method of operating a refrigeration system in a null cycle | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US5465586A | Methods and apparatus for operating a refrigeration system characterized by controlling engine coolant | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US9453669B2 | Method of controlling inlet pressure of a refrigerant compressor | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.