Average Co-Inventor Count = 2.12
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. Other (1 from 832,680 patents)
3. Parker Pen (benelux) B.v. (1 from 10 patents)
6 patents:
1. 5551788 - Writing instrument
2. D288825 - Automatic pencil
3. D286789 - Mechanical pencil
4. 4529328 - Projection-retraction mechanism for a writing instrument
5. D252634 - Barrel tip assembly for a ball point pen
6. D252464 - Fountain pen nib