Average Co-Inventor Count = 2.93
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. The Parker Pen Company (3 from 29 patents)
2. Parker Pen (Benelux) B.v. (1 from 10 patents)
4 patents:
1. 4702634 - Continuous feed mechanical pencil with push button lead feed actuator
2. D282754 - Writing instrument with faceted trim rings
3. D282672 - Ball point writing instrument
4. 3951555 - Modular writing pen