Average Co-Inventor Count = 1.41
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 Aktiengesellschaft (4 from 30,040 patents)
4 patents:
1. 5521565 - Surface wave interdigital transducer and surface wave filter with
2. 5414321 - Surface-wave arrangement having a structure for preventing interfering
3. 5349260 - Two track surface wave arrangement with improved selection property
4. 5128640 - Surface wave low filter loss having coupling transducers