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. Hewlett-packard Company (1 from 9,638 patents)
2. Sud-chemie Ag (1 from 118 patents)
2 patents:
1. 6645461 - Process for production of zeolites with high Si/Al atomic ratio
2. 5858241 - Column for capillary chromatographic separations and method of