Average Co-Inventor Count = 1.89
ph-index = 3
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Natural Energy Systems Inc. (5 from 6 patents)
2. Hrb, L.l.c. (1 from 1 patent)
6 patents:
1. 5363664 - Single and multistage refrigeration system and method using hydrocarbons
2. 5056323 - Hydrocarbon refrigeration system and method
3. 4424681 - Hydraulic refrigeration system and method
4. 4311025 - Gas compression system
5. 4251998 - Hydraulic refrigeration system and method
6. 4157015 - Hydraulic refrigeration system and method