Average Co-Inventor Count = 2.07
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. Qisda Corporation (3 from 545 patents)
3 patents:
1. 10609472 - Speaker module and projector
2. 7891658 - Paper feeder having a paper stopper and office machine using the same
3. 7552994 - Print-head maintenance device for use in an inkjet printer