Average Co-Inventor Count = 1.20
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. Other (1 from 832,761 patents)
2. Southworth Company (1 from 5 patents)
3. Tarrant; Kent (1 from 1 patent)
3 patents:
1. D298550 - Calendar base
2. D260405 - Calendar base
3. 4250639 - Memorandum pad-calendar