Average Co-Inventor Count = 4.00
ph-index = 1
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. Other (1 from 832,891 patents)
2. Doowon Technical College (13 patents)
3. Doowon Electronic Co., Ltd. (11 patents)
4. Obrist Engineering Gmbh (9 patents)
5. Kroess, Stefan (0 patent)
1 patent:
1. 6789569 - Pressure relief valve with a spring-loaded membrane closing body