Inventor · disambiguated record
Risto Virtanen
Also filed as: VIRTANEN RISTO · VIRTANEN RISTO K V
16 granted patents·1,602 citations·filing 1981–1998
96Inventor score
Top patents by PatentIndex Score
16 records- 0195USD441446SDry powder inhaler with coverASTRA AB·Filed 1998·Granted May 1, 2001·58 cites·1 claims
- 0295US4668218AIndicating means for a dosage dispensing deviceDRACO AB·Filed 1986·Granted May 26, 1987·403 cites·10 claims
- 0394USD417912SDry powder inhaler with coverASTRA AB·Filed 1998·Granted Dec 21, 1999·55 cites·1 claims
- 0494USD417732SDry powder inhaler with coverASTRA AB·Filed 1998·Granted Dec 14, 1999·63 cites·1 claims
- 0593US4907583ADevice in powder inhalatorsDRACO AB·Filed 1988·Granted Mar 13, 1990·312 cites·10 claims
- 0692USD276654SMedical aerosol inhalation deviceAB DRACO·Filed 1982·Granted Dec 4, 1984·57 cites·1 claims
- 0769USD276847SMedical aerosol inhalation deviceAB DRACO·Filed 1982·Granted Dec 18, 1984·14 cites·1 claims
- 0866US6484717B1Inhalation deviceASTRA AB·Filed 1998·Granted Nov 26, 2002·110 cites·10 claims
- 0964US5549101ADosage inhalator with indicating/interrupting meansASTRA AB·Filed 1993·Granted Aug 27, 1996·106 cites·17 claims
- 1062US7143764B1Inhalation deviceASTRAZENECA AB·Filed 1998·Granted Dec 5, 2006·95 cites·13 claims
- 1162US4641644AAerosol inhalation deviceDRACO AB·Filed 1985·Granted Feb 10, 1987·97 cites·9 claims
- 1254US6446626B1Inhalation deviceASTRA AB·Filed 1998·Granted Sep 10, 2002·71 cites·16 claims
- 1354US6142145AInhalation deviceASTRA AB·Filed 1998·Granted Nov 7, 2000·74 cites·27 claims
- 1451US6095136AInhalation deviceASTRA AB·Filed 1998·Granted Aug 1, 2000·60 cites·33 claims
- 1545US4361243AClosing means for a container, tube or the likePERLOS OY·Filed 1981·Granted Nov 30, 1982·14 cites·2 claims
- 1633US6328032B1Inhalation deviceASTRA AB·Filed 1998·Granted Dec 11, 2001·13 cites·27 claims
Join the waitlist — get patent alerts
Get an alert when Risto Virtanen 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 →