Average Co-Inventor Count = 2.57
ph-index = 3
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. Beekley Corporation (2 from 45 patents)
2. Beakley Corporation (1 from 1 patent)
3 patents:
1. 6928146 - Method of making a marking grid for radiographic imaging
2. 6714628 - Marking grid for radiographic imaging, and method of making such a grid
3. 5702128 - Radiographic marker system and method of making same