Average Co-Inventor Count = 2.00
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. Other (1 from 832,812 patents)
2. Npl Associates, Inc. (1 from 8 patents)
2 patents:
1. 7230201 - Apparatus and methods for controlling charged particles
2. 6593539 - Apparatus and methods for controlling charged particles