Average Co-Inventor Count = 7.47
ph-index = 2
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. Transaction Technology Inc. (2 from 31 patents)
2 patents:
1. D341583 - Keyboard for telephone computer
2. D337570 - Combined telephone computer and keyboard