Average Co-Inventor Count = 1.00
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. Degussa Aktiengesellschaft (1 from 1,678 patents)
2. Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler (1 from 343 patents)
2 patents:
1. 4388768 - Stiffening and non-slip material for the heel region of shoes
2. 4308673 - Stiffening and likewise non-slip material for the heel region of shoes