Mark C. Calahan

PA Parker-Hannifin: 1 patents #643 of 1,656Top 40%

📍 Sebastopol, CA: #143 of 246 inventorsTop 60%

🗺 California: #247,236 of 386,348 inventorsTop 65%

Overall (All Time): #3,705,452 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5847535	Active electronic damping for step motor	Jack Nordquist, Timothy J. Damiano, Christopher Botka	1998-12-08