Average Co-Inventor Count = 3.00
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. Siemens Information & Communication Networks, Inc. (1 from 310 patents)
2. Siemens Business Communication Systems, Inc. (1 from 46 patents)
3. Siemens Rolm Communications Inc. (1 from 13 patents)
3 patents:
1. 6002753 - Method and apparatus for interfacing computers to exchange telephone
2. 5945990 - PBX data retrieval and reporting system and method
3. 5623540 - PBX data retrieval and reporting system and method