Average Co-Inventor Count = 5.46
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. The Chamberlain Group, Inc. (1 from 513 patents)
2. Telephonics Corporation (1 from 21 patents)
2 patents:
1. 7151351 - Method, system and apparatus for opening doors
2. 6624605 - Method, system and apparatus for opening doors