Average Co-Inventor Count = 3.00
ph-index = 2
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 Aktiengesellschaft (1 from 30,040 patents)
2. Roke Manor Research Limited (1 from 139 patents)
2 patents:
1. 8184039 - Level sensing device
2. 7142154 - Time and frequency synchronizations of equipment at different locations