Average Co-Inventor Count = 2.00
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. Yoshida Kogyo K.k. (2 from 1,145 patents)
2. Scovill Manufacturing Company (1 from 35 patents)
3 patents:
1. 4545118 - Apparatus for producing slide fasteners from continuous fastener chain
2. 4495686 - Apparatus for producing slide fasteners from continuous fastener chain
3. 4206669 - Apparatus for gapping zipper chain