Average Co-Inventor Count = 2.40
ph-index = 4
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. Endeavour Iv, Inc. (2 from 2 patents)
2. Other (1 from 832,718 patents)
3. Porelon, Inc. (1 from 19 patents)
4 patents:
1. 5472091 - Combined photo and negative storage container
2. D361789 - Stackable photo file
3. D323527 - Self-inking hand stamp
4. 4970954 - Self inking hand stamp