Average Co-Inventor Count = 4.50
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. (2 from 9,463 patents)
2. Other (1 from 832,843 patents)
3 patents:
1. 6814243 - Replaceable filter with locking mechanism
2. 6481580 - Fluid filter with locking mechanism
3. 6384369 - Liquid filter construction and methods