Average Co-Inventor Count = 4.15
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. Esselte N.v. (3 from 60 patents)
3 patents:
1. 6572290 - Tape printer
2. 6499840 - Multi-functional printer
3. 6481905 - Printer with failsafe features