Average Co-Inventor Count = 1.89
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. Noise Cancellation Technologies, Inc. (2 from 73 patents)
2. Other (1 from 832,843 patents)
3 patents:
1. 6711445 - Refrigeration control apparatus and method
2. 5563817 - Adaptive canceller filter module
3. 5313945 - Active attenuation system for medical patients