Average Co-Inventor Count = 2.25
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. International Business Machines Corporation (3 from 164,219 patents)
3 patents:
1. 4239789 - Maskless method for electroless plating patterns
2. 4107063 - Water based selectable charge magnetic inks
3. 3990981 - Water based magnetic inks and the manufacture thereof