Average Co-Inventor Count = 6.13
ph-index = 3
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. Mannesmann Aktiengesellschaft (3 from 1,150 patents)
2. Demag Aktiengesellschaft (1 from 73 patents)
4 patents:
1. 6057521 - Suspended control panel
2. 5507472 - Hoist with a lifting device
3. 5480125 - Hoist with a lifting device
4. 4209681 - Pull switch