Average Co-Inventor Count = 1.14
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. Mitel Corporation (6 from 307 patents)
2. Northern Telecom Limited (2 from 2,276 patents)
3. Trillium Telephone Systems Inc. (1 from 13 patents)
8 patents:
1. D338890 - Telephone handset
2. D289160 - Telephone
3. D286876 - Telephone
4. D275753 - Combined telephone inter communication and automatic telephone dialing
5. D275751 - Telephone
6. D275752 - Telephone control unit
7. D265734 - Telephone set base
8. D254552 - Enclosure for a telephone jumper-wire interface unit