Average Co-Inventor Count = 3.00
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. Esselte Leitz Gmbh & Co. Kg (3 from 11 patents)
2. Leitz Acco Brands Gmbh & Co Kg (1 from 2 patents)
4 patents:
1. 12466044 - Stapling device
2. 8622273 - Stapler
3. 8573105 - Paper punch
4. 8297485 - Stapler