Average Co-Inventor Count = 4.50
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. Firma Carl Still Gmbh & Co Kg (2 from 69 patents)
2. Firma Carl Still, Recklinghausen, and Bergwerksverband Gmbh (1 from 1 patent)
3 patents:
1. 4614567 - Method and apparatus for selective after-quenching of coke on a coke
2. 4240877 - Method for preheating coal for coking
3. 4167453 - Regenerator lining for regenerator chamber cells in coke ovens