Average Co-Inventor Count = 1.25
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. Hewlett-Packard Company (2 from 9,639 patents)
2. Ngai Keung Metal & Plastic Manufactory Ltd. (2 from 3 patents)
4 patents:
1. 6296407 - Stackable low profile printer with an input and output media telescoping tray cassette
2. 6106178 - Printer and printer paper tray
3. 6054787 - Electric motor
4. D348292 - Toy sewing machine