Average Co-Inventor Count = 7.30
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. British Telecommunications Public Limited Company (3 from 1,873 patents)
2. Orbitel Mobile Communications Limited (3 from 14 patents)
3. Stc, Inc (2 from 232 patents)
4. Gec Plessey Telecommunications Limited (2 from 39 patents)
5. Shaye Communications Limited (2 from 9 patents)
6. Mercury Communications Limited (2 from 2 patents)
7. Phonepoint Limited (2 from 2 patents)
8. Ferranti Creditphone Limited (2 from 2 patents)
9. Northern Telecom Limited (1 from 2,276 patents)
10. Kenwood Corporation (1 from 75 patents)
11. Gpt Limited (1 from 66 patents)
12. At&t Wireless Communications Products Limited (1 from 4 patents)
3 patents:
1. 5416779 - Time division duplex telecommunication system
2. 5228026 - Technique for time-division duplex cordless telecommunication
3. 5208812 - Telecommunications system