Average Co-Inventor Count = 1.80
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. Litton Business Systems, Inc. (6 from 70 patents)
6 patents:
1. D266005 - Calculator keyboard module
2. D257512 - Calculator case
3. D257513 - Case for calculating machine
4. D255567 - Ribbon cassette
5. D248595 - Portable calculating machine
6. D248419 - Calculating machine