Average Co-Inventor Count = 2.67
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. U.S. Philips Corporation (2 from 14,087 patents)
2 patents:
1. 4946751 - Method of manufacturing a mask for radiation lithography
2. 4049523 - Method of and device for providing thin layers by cathode sputtering