Average Co-Inventor Count = 1.76
ph-index = 3
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 Inc. (3 from 9,451 patents)
3 patents:
1. 5844160 - Land mine clearing tool
2. 5303468 - Method of manufacturing a crankshaft
3. 5280955 - Construction for a rollover protection structure