Average Co-Inventor Count = 3.00
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. Hyundai Electronics Industries Co. Ltd. (2 from 2,340 patents)
2 patents:
1. 6262222 - Copolymers containing N-vinyllactam derivatives, preparation methods thereof and photoresists therefrom
2. 6051678 - Copolymers containing N-vinyllactam derivatives, preparation methods