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. Saint-gobain/norton Industrial Ceramics Corporation (1 from 103 patents)
2. Norton Desmarquest Fine Ceramics (1 from 5 patents)
2 patents:
1. 5972033 - Hip joint prosthesis having a 22.22 mm zirconia femoral head and a 12/14
2. 5871547 - Hip joint prosthesis having a zirconia head and a ceramic cup