Average Co-Inventor Count = 2.00
ph-index = 5
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. Wagner Electric Corporation (2 from 83 patents)
2. Umc Industries, Inc. (2 from 76 patents)
3. Motorola Corporation (1 from 20,290 patents)
5 patents:
1. 4512454 - Coin apparatus having coin escrow and return means
2. 4512453 - Vendor accountability system
3. 4330758 - Synchronized frequency synthesizer with high speed lock
4. 4224568 - Frequency to digital converter
5. 4219244 - Fault detector for wheel slip control system