Average Co-Inventor Count = 2.27
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. Nec Corporation (7 from 35,670 patents)
7 patents:
1. D344934 - Magnetic tape storage unit for an electronic computer
2. D344722 - Magnetic tape storage unit for an electronic computer
3. D344723 - Magnetic tape storage unit for an electronic computer
4. D344267 - Arithmethic control unit for an electronic computer
5. D322428 - Arithmetic control unit for an electronic computer
6. D322427 - Arithmetric control unit for an electronic computer
7. D307135 - Control unit for a personal computer