Average Co-Inventor Count = 3.00
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. Hallmark Cards, Inc. (3 from 233 patents)
3 patents:
1. 12288113 - Signature-based unique identifier
2. 11900194 - Signature-based unique identifier
3. 11263503 - Signature-based unique identifier