Inventor

Martin P. Babcock

Inventor

White Bear Lake, MN, US

Overview

20→

Patents

1990–2021

Patent span

Human necessities

Primary field (CPC A)

Patents· 20 as inventor

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

H04Rprimary

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers30%

A61FFilters implantable into blood vessels10%

A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons7%

A63CSkates7%

A23VIndexing scheme relating to foods, foodstuffs or non-alcoholic beverages and lactic or propionic acid bacteria used in foodstuffs or food preparation3%

A47CChairs3%

A47DFurniture specially adapted for children3%

A61BDiagnosis3%

A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing3%

A63GMerry-go-rounds3%

PatentTitleYear

11,071,974Composition, method and apparatus for sulfite removal from beverages2021 D0872283Point of care device2020 8,111,863'Earbud adapter'2012 8,111,864'Earbud adapter'2012 7,864,973'User disposable sleeve for use within the ear canal'2011 7,641,210'Hand-driven wheelchair'2010 7,600,604'User disposable member for use within the ear canal and methods for manufacturing the same'2009 7,349,550'Earbud adapter'2008 7,236,605'User disposable sleeve for use within the ear canal'2007 6,622,815'Transducer support pad'2003 6,310,961'Disposable sleeve assembly for sound control device and container therefor'2001 5,938,283'Wheelchair compatible lawn swing'1999 5,920,636'Disposable foam sleeve for sound control device and container therefor'1999 5,697,158'Orthopedic surgical device having a rotatable portion and lock'1997 5,582,406'Hockey stick blade coupler'1996 D0366156'Lawn swing'1996 5,482,301'Self leveling in-line skate brake'1996 5,257,795'Skate braking system'1993 5,002,151'Ear piece having disposable, compressible polymeric foam sleeve'1991 4,939,820'Rope fastener'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2012Patents assigned to BABCOCK MARTIN P (3)· patent assignee history

1990–1991Based in Oakdale, MN, US· patent location history

1991–1997Patents assigned to MINNESOTA MINING & MFG (2)· patent assignee history

1993–2021Patents assigned to BABCOCK MARTIN (4)· patent assignee history

1993–1999Based in Woodbury, MN, US· patent location history

1999–2012Patents assigned to HEARING COMPONENTS INC (9)· patent assignee history

1999–2021Based in White Bear Lake, MN, US· patent location history

2012Patents assigned to OLIVEIRA ROBERT J (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HEARING COMPONENTS INC	9	1999–2012
BABCOCK MARTINself	4	1993–2021
BABCOCK MARTIN Pself	3	1990–2012
MINNESOTA MINING & MFG	2	1991–1997
OLIVEIRA ROBERT J	2	2012

Locations

Location	Patents	Span
White Bear Lake, Minnesota, US	12	1999–2021
Woodbury, Minnesota, US	6	1993–1999
Oakdale, Minnesota, US	2	1990–1991