Average Co-Inventor Count = 4.44
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. Hoechst Celanese Corporation (1 from 1,194 patents)
2. Mitsubishi Polyester Film Gmbh (1 from 233 patents)
2 patents:
1. 5919536 - Biaxially oriented films containing layers of polyethylene naphthalate
2. 5674589 - Copolyester compositions comprising poly(ethylene naphthalate