Average Co-Inventor Count = 4.61
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. U.S. Philips Corporation (1 from 14,087 patents)
2. Electronic Processors, Inc. (1 from 4 patents)
2 patents:
1. 5155639 - Transport apparatus for a single reel tape cartridge
2. 4646177 - Automatic tape threading system for use in a tape transport system