Average Co-Inventor Count = 1.55
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. United Technologies Corporation (4 from 10,654 patents)
4 patents:
1. D361053 - Helicopter
2. 5152478 - Unmanned flight vehicle including counter rotating rotors positioned
3. D297005 - Helicopter
4. D270151 - Helicopter