Average Co-Inventor Count = 1.78
ph-index = 4
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. Motorola Corporation (2 from 20,290 patents)
2. British Telecommunications Public Limited Company (1 from 1,874 patents)
3. British Telecommunications Corporation (1 from 445 patents)
4 patents:
1. D370672 - Face plate for telephone device
2. D353816 - Selective call receiver
3. D299649 - Telephone handset
4. D298831 - Telephone instrument base