Average Co-Inventor Count = 1.15
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. American Flange Mfg. Co., Inc. (5 from 9 patents)
5 patents:
1. 7537132 - Tamper evident plug and combination
2. D548423 - Drum lid
3. D548424 - Drum lid
4. D548425 - Drum lid
5. D543004 - Drum lid