Average Co-Inventor Count = 4.80
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. Osaka Gas Company Limited (4 from 353 patents)
2. Kobe Steel, Ltd. (2 from 1,887 patents)
3. Matsushita Electric Industrial Co., Ltd. (1 from 27,375 patents)
4. Catalysts and Chemicals Inc. (1 from 5 patents)
5. Catalysts and Chemicals Inc., Far East (1 from 4 patents)
4 patents:
1. 5505910 - Catalytic combustion apparatus
2. 5387399 - Catalytic combustion apparatus
3. 4491640 - Catalyst for combustion at low temperatures and process for producing
4. 4483673 - Catalytic combustion arrangement