Average Co-Inventor Count = 3.11
ph-index = 17
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. Porter-cable Corporation (18 from 112 patents)
2. Irwin-industrial Tool Company (13 from 291 patents)
3. Porter-cable/delta (8 from 22 patents)
4. Black Decker Inc. (7 from 5,072 patents)
5. Other (1 from 832,680 patents)
6. Delta International Machinery Corp. (1 from 99 patents)
7. Irwin Hand Tools/north America (1 from 1 patent)
8. Porter-cable Coporation (1 from 1 patent)
9. Proter-cable Corporation (1 from 1 patent)
51 patents:
1. 8167683 - In-line sander
2. 7756665 - Electronic measuring device
3. 7640672 - Laser reference device
4. 7513051 - Laser line generating device with graduated base
5. 7497019 - Laser reference device
6. 7469481 - Intersecting laser line generating device
7. 7438629 - In-line sander
8. 7387655 - Air filtration unit
9. 7377045 - Laser reference device
10. 7328516 - Laser level
11. 7310887 - Intersecting laser line generating device
12. 7281460 - Positive lock tail stock support for lathe
13. 7272893 - Rolling electronic length measuring device
14. 7269907 - Laser line generating device with swivel base
15. 7222437 - Combined stud finder and tape measure device