Average Co-Inventor Count = 5.09
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. (2 from 516 patents)
2. Brother International Corporation (2 from 59 patents)
4 patents:
1. D500747 - Housing for barrier movement controller
2. D500746 - Housing for barrier movement controller
3. D459335 - Digital voice and handwriting recorder
4. D449603 - Device for recording information