Average Co-Inventor Count = 2.00
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. Denco Corporation (1 from 42 patents)
2. Davy Mckee (sheffield) Limited (1 from 27 patents)
3. Esmond Grattan (0 patent)
4. David Macklin (0 patent)
1 patent:
1. 5415249 - Air/oil mixture as a lubricant