Average Co-Inventor Count = 1.82
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. Other (2 from 833,002 patents)
2. System K, Inc. (2 from 2 patents)
4 patents:
1. 6948251 - Pivoting sharpening device for pencil with non-circular cross section
2. 6725549 - Sliding sharpening device for pencil with non-circular cross section
3. 6231453 - Golf swing indicator
4. 5014431 - Tool for handling disposable food containing bags