Average Co-Inventor Count = 3.24
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. Minnesota Mining and Manufacturing Company (3 from 7,865 patents)
2. Imation Corporation (1 from 621 patents)
4 patents:
1. D412326 - Data storage tape cartridge
2. D366059 - Tape cartridge
3. D363066 - Tape cartridge
4. 5370332 - Videocassette flange with time available gauge