Inventor

David A. Russell

Inventor

Kirkland, WA, US

Overview

1979–2006

Patent span

Mechanical engineering

Primary field (CPC F)

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

G10Kprimary

G10KSound-producing devices20%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%

C07CAcyclic or carbocyclic compounds13%

A61BDiagnosis7%

A61MDevices for introducing media into, or onto, the body7%

B08BCleaning in general7%

E21BEarth or rock drilling7%

F16LPipes7%

F41GWeapon sights7%

F42BExplosive charges, e.g. for blasting, fireworks, ammunition7%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1979Patents assigned to MATHEMATICAL SCIENCES NORTHWES (1)· patent assignee history

1979–1994Based in Kirkland, WA, US· patent location history

1986Patents assigned to WASHINGTON RES FOUND (1)· patent assignee history

1988Patents assigned to RUSSELL DAVID A (1)· patent assignee history

1988Based in Rawlins, WY, US· patent location history

1993–1994Patents assigned to UNIV WASHINGTON (2)· patent assignee history

2006Patents assigned to WEATHERFORD LAMB (1)· patent assignee history

2006Based in Edinburgh, GB· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNIV WASHINGTON	2	1993–1994
MATHEMATICAL SCIENCES NORTHWES	1	1979
RUSSELL DAVID Aself	1	1988
WASHINGTON RES FOUND	1	1986
WEATHERFORD LAMB	1	2006

Locations