Average Co-Inventor Count = 1.14
ph-index = 4
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. Pacific Handy Cutter, Inc. (4 from 104 patents)
4 patents:
1. D420271 - Letter opener
2. 6003181 - Combined letter opener and sheet-like material cutter tool
3. D355347 - Letter opener
4. D353316 - Combined ruler and letter opener