Average Co-Inventor Count = 3.75
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. Weatherford/lamb, Inc. (1 from 1,209 patents)
2. Johnson Filtration Systems (1 from 7 patents)
3. Weatherford Technology Holdings, LLC (897 patents)
2 patents:
1. 6851560 - Drain element comprising a liner consisting of hollow rods for collecting in particular hydrocarbons
2. 6715544 - Well screen