Average Co-Inventor Count = 2.67
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. Huls Troisdorf Aktiengesellschaft (1 from 5 patents)
2. W. Strikfeldt & Koch Gmbh (1 from 2 patents)
2 patents:
1. 5485986 - Furnace with in situ foamed insulation and process for its manufacture
2. 4687438 - Shaft melting furnace for melting metals