Average Co-Inventor Count = 2.40
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. L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des (1 from 715 patents)
2. Kemira Chemicals Oy (1 from 23 patents)
3. Kat-tecnik Oy (1 from 1 patent)
4. Finn Katalyt Oy (1 from 1 patent)
5. Bt Wood Oy (0 patent)
4 patents:
1. 6689377 - Solid formic acid product
2. 5898065 - Neutralization of tall oil soap
3. 5685143 - Catalytic exhaust gas purifier and catalytic method of purifying exhaust
4. 5590522 - Catalytic combustion engine exhaust gas purifier with additional air