Average Co-Inventor Count = 2.67
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. Caterpillar Tractor Co. (2 from 1,981 patents)
2 patents:
1. 4142421 - Transmission arrangement
2. 4047383 - Torque converter with variable stator