Average Co-Inventor Count = 2.40
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. C-tech Energy Services, Inc. (1 from 4 patents)
2. 768885 Alberta Ltd. (1 from 1 patent)
2 patents:
1. 6575241 - Downhole communication apparatus
2. 6481082 - Portable continuous sucker rod manufacturing process