Average Co-Inventor Count = 4.00
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. Pfaff Industriemaschinen Gmbh (1 from 179 patents)
2. G.m. Pfaff Aktiengesellschaft (1 from 43 patents)
2 patents:
1. 5375546 - Shortening of needle thread end at the beginning and end of sewing in
2. 5018465 - Sewing machine with thread monitor