Average Co-Inventor Count = 1.60
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. E.i. Dupont De Nemours and Company (1 from 16,338 patents)
2. Dupont (UK) Limited (1 from 14 patents)
2 patents:
1. 4848718 - Apparatus for molding heat weldable pipe fittings
2. 4825534 - Method of manufacturing heat-weldable thermoplastic fittings