Average Co-Inventor Count = 3.43
ph-index = 1
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. Hewlett-packard Development Company, L.p. (1 from 27,404 patents)
2. Tatung Company (1 from 217 patents)
2 patents:
1. 7254043 - Power converter for fuel battery
2. D478910 - Optical scanner