Average Co-Inventor Count = 2.33
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. International Business Machines Corporation (2 from 164,306 patents)
3 patents:
1. D501064 - Wall-mounted cat scratching device
2. 4701851 - Compound word spelling verification
3. 4672571 - Compound word suitability for spelling verification