Average Co-Inventor Count = 1.88
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. W-k-m Wellhead Systems, Inc. (5 from 32 patents)
5 patents:
1. 4372563 - Packing support for mounting a well casing packing
2. 4328013 - Baffle plate for steam separator
3. 4263025 - Baffle plate for cyclone steam separator
4. 4225325 - Steam separator with variably sized rectangular inlet opening
5. 4184504 - Wellhead valve removal and installation tool