Average Co-Inventor Count = 1.20
ph-index = 2
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. Bp America (2 from 14 patents)
2. The Standard Oil Company (1 from 1,192 patents)
3 patents:
1. H000871 - Froth flotation of mineral ores
2. 4913805 - Apparatus and method for froth flotation
3. 4659458 - Apparatus and method for froth flotation employing rotatably mounted