Average Co-Inventor Count = 1.00
ph-index = 5
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. Gec Plessey Telecommunications Limited (4 from 39 patents)
2. Gec Plessy Telecommunications Ltd. (1 from 2 patents)
5 patents:
1. D305653 - Cash and credit public pay telephone stand
2. D304725 - Public pay telephone stand with alternative payment means
3. D304190 - Debit card public pay telephone stand
4. D302814 - Cash call public pay telephone stand without coin box
5. D302691 - Cash call public pay telephone stand