Average Co-Inventor Count = 1.55
ph-index = 4
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. Gretsch-unitas Gmbh Baubeschlage (2 from 6 patents)
2. Gretsch-unitas Gmbh (2 from 6 patents)
3. Fischl, Joseph (0 patent)
4 patents:
1. 6389855 - Locking device for a door, window or the like
2. 6266981 - Lock, in particular mortise lock for an exterior door
3. 5878605 - Lock, in particular mortise lock
4. D404142 - Combined window and window frame