Average Co-Inventor Count = 1.15
ph-index = 4
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. William Prym-werke Gmbh, & Co. Kg (3 from 11 patents)
2. William Prym-werke Kg (2 from 14 patents)
5 patents:
1. 5115548 - Button for use on garments and the like
2. 5003673 - Snap fastener
3. 4751773 - Snap fastener
4. 4409052 - Method of manufacturing a two-wing dress-shielding element
5. 4097969 - Button having a stitchless fastener