Average Co-Inventor Count = 1.14
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. Kennedy Company (2 from 5 patents)
2. Irwin Magnetic Systems, Inc. (1 from 14 patents)
3. Roberts Consolidated Industries, Inc. (1 from 8 patents)
4 patents:
1. 4807067 - Cartridge tape drive
2. D291797 - Electric motor housing
3. 4673995 - Cartridge tape drive with friction roller to open cartridge door
4. 4262418 - Boot for trimmer for resilient floor covering material