Assignee
MARTTILA HEIKKI OY
FI·2 granted patents·80 citations·filing 1990–1990
Technology mixG06F2
Top patents by PatentIndex Score
2 records- 0168US5140153ACircuitry for compensating for the effect of light on the operation of infrared-sensitive phototransistors in a contact display panelMARTTILA HEIKKI OY·Filed 1990·Granted Aug 18, 1992·62 cites·7 claims
- 0240US5146081ASwitching circuit for a contact display panelMARTTILA HEIKKI OY·Filed 1990·Granted Sep 8, 1992·18 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when MARTTILA HEIKKI OY files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →