Average Co-Inventor Count = 2.77
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. Madaus Gmbh & Co. (2 from 8 patents)
2. Madaus Ag (1 from 8 patents)
3 patents:
1. 5159080 - Indole compounds, a process for their preparation, and pharmaceutical
2. 4855422 - Process for the preparation of azoniaspironortropanol esters
3. 4780476 - Azoniaspironortropanol esters as asthma therapeutics and broncholytics