Inventor · disambiguated record

John K. Carstedt

Also filed as: CARSTEDT JOHN K

3 granted patents·240 citations·filing 1984–1988

78Inventor score

Technology areasG06F

Files withCARROLL TOUCH INC3

Top patents by PatentIndex Score

3 records

0182US4684801ASignal preconditioning for touch entry deviceCARROLL TOUCH INC·Filed 1986·Granted Aug 4, 1987·93 cites·12 claims
0281US4943806ATouch input device having digital ambient light samplingCARROLL TOUCH INC·Filed 1988·Granted Jul 24, 1990·87 cites·5 claims
0380US4645920AEarly fault detection in an opto-matrix touch input deviceCARROLL TOUCH INC·Filed 1984·Granted Feb 24, 1987·60 cites·5 claims

Join the waitlist — get patent alerts

Get an alert when John K. Carstedt files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →