Inventor

Risto Virtanen

Inventor

Nurmijarvi, FI

Overview

16→

Patents

1982–2006

Patent span

Human necessities

Primary field (CPC A)

Patents· 16 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A61Mprimary

A61MDevices for introducing media into, or onto, the body67%

LOC2920%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers13%

PatentTitleYear

7,143,764'Inhalation device'2006 6,484,717'Inhalation device'2002 6,446,626'Inhalation device'2002 6,328,032'Inhalation device'2001 D0441446'Dry powder inhaler with cover'2001 6,142,145'Inhalation device'2000 6,095,136'Inhalation device'2000 D0417912'Dry powder inhaler with cover'1999 D0417732'Dry powder inhaler with cover'1999 5,549,101'Dosage inhalator with indicating/interrupting means'1996 4,907,583'Device in powder inhalators'1990 4,668,218'Indicating means for a dosage dispensing device'1987 4,641,644'Aerosol inhalation device'1987 D0276847'Medical aerosol inhalation device'1984 D0276654'Medical aerosol inhalation device'1984 4,361,243'Closing means for a container, tube or the like'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to PERLOS OY (1)· patent assignee history

1982–2006Based in Nurmijarvi, FI· patent location history

1984Patents assigned to AB DRACO (2)· patent assignee history

1987–1990Patents assigned to DRACO AB (3)· patent assignee history

1987Based in Nurmij/a/ rvi, FI· patent location history

1996–2002Patents assigned to ASTRA AB (9)· patent assignee history

2002Based in Nurmijrvi, FI· patent location history

2006Patents assigned to ASTRAZENECA AB (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ASTRA AB	9	1996–2002
DRACO AB	3	1987–1990
AB DRACO	2	1984
ASTRAZENECA AB	1	2006
PERLOS OY	1	1982

Locations

Location	Patents	Span
Nurmijarvi, FI	13	1982–2006
Nurmijrvi, FI	2	2002
Nurmij/a/ rvi, FI	1	1987