Inventor

Davis W. Chamberlin

Inventor

St. Paul, MN, US

Overview

23→

Patents

1978–2001

Patent span

Physics

Primary field (CPC G)

Patents· 23 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer29%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers15%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers12%

Y02WClimate change mitigation technologies related to wastewater treatment or waste management10%

A61FFilters implantable into blood vessels7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

E05BLocks5%

E05CBolts or fastening devices for wings, specially for doors or windows5%

G03BApparatus or arrangements for taking photographs or for projecting or viewing them2%

LOCD02%

PatentTitleYear

6,310,961'Disposable sleeve assembly for sound control device and container therefor'2001 6,292,565'Assembly including a phone cover'2001 5,996,584'Sealing strip for ear plugs and the like'1999 5,920,636'Disposable foam sleeve for sound control device and container therefor'1999 5,622,260'Support for tape pancakes'1997 5,582,312'Reusable, multiple-piece storage container'1996 5,551,568'Stacking device for containers'1996 5,501,351'Reusable, multiple-piece storage container'1996 5,429,240'Light-tight container'1995 5,303,823'Reusable, two-piece storage container'1994 5,284,246'Support for tape pancakes'1994 5,232,092'Shock shield for shipping cases'1993 5,165,542'Reusable container for tape pancakes'1992 5,125,511'Blow molded box'1992 5,033,778'Integral over-center toggle latch for use with a molded case'1991 5,027,949'Lock for magnetic tape reel shipping case'1991 5,002,151'Ear piece having disposable, compressible polymeric foam sleeve'1991 4,974,740'Triple-action latch for a shipping case'1990 4,969,534'Hearing aid employing a viscoelastic material to adhere components to the casing'1990 4,880,076'Hearing aid ear piece having disposable compressible polymeric foam sleeve'1989 4,879,621'Disk restraint'1989 4,815,600'Storage container for diskettes'1989 D0248148'Developer powder container'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1997Patents assigned to MINNESOTA MINING & MFG (19)· patent assignee history

1978–2001Based in St. Paul, MN, US· patent location history

1989Patents assigned to SONY CORP (1)· patent assignee history

1999–2001Patents assigned to HEARING COMPONENTS INC (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MINNESOTA MINING & MFG	19	1978–1997
HEARING COMPONENTS INC	4	1999–2001
SONY CORP	1	1989

Locations

Location	Patents	Span
St. Paul, Minnesota, US	23	1978–2001