Average Co-Inventor Count = 2.40
ph-index = 1
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. Brother Kogyo Kabushiki-Kaisha (3 from 17,600 patents)
3 patents:
1. 4651660 - Sewing machine with an automatic threader
2. 4417533 - Spring biased presser foot
3. 4377120 - Pattern selection system for a sewing machine