Average Co-Inventor Count = 2.67
ph-index = 2
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. Chevron Research Company (2 from 1,860 patents)
2. University of Alberta (2 from 446 patents)
4 patents:
1. 5164168 - Method and apparatus for purifying air
2. 5008091 - Method for purifying air
3. 4828601 - Chemical tobacco sucker control
4. 4701205 - Chemical tobacco sucker control