Inventor

Marvin Allan Leedom

Inventor

Princeton, NJ, US

Overview

32→

Patents

1976–2011

Patent span

Electricity

Primary field (CPC H)

Patents· 32 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 transducers31%

G11BInformation storage based on relative movement between record carrier and transducer20%

A61BDiagnosis12%

A61MDevices for introducing media into, or onto, the body4%

H05KPrinted circuits4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

B05DProcesses for applying fluent materials to surfaces, in general2%

B23DPlaning2%

B28DWorking stone or stone-like materials2%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers2%

PatentTitleYear

7,987,977'Hearing aid package'2011 7,536,023'Hearing aid'2009 7,403,629'Disposable modular hearing aid'2008 7,221,768'Hearing aid with large diaphragm microphone element including a printed circuit board'2007 7,113,611'Disposable modular hearing aid'2006 7,092,543'One-size-fits-all uni-ear hearing instrument'2006 7,010,137'Hearing aid'2006 6,865,279'Hearing aid with a flexible shell'2005 6,473,511'Disposable hearing aid with integral power source'2002 6,415,790'Dry powder delivery system apparatus'2002 6,410,997'Power source for a hearing aid'2002 6,389,143'Modular electroacoustic instrument'2002 6,283,915'Disposable in-the-ear monitoring instrument and method of manufacture'2001 6,237,590'Dry powder delivery system apparatus'2001 6,205,227'Peritympanic hearing instrument'2001 6,165,547'Rolled edge seal for electrooptic device'2000 6,058,198'Battery and circuitry assembly'2000 5,881,159'Disposable hearing aid'1999 5,825,896'Hinged hearing aid'1998 4,341,472'Method and apparatus for positioning a tapered body'1982 4,330,735'Beam guide structure for a flat panel display device'1982 4,228,782'System for regulating the applied blade-to-boule force during the slicing of wafers'1980 4,098,511'Video disc handling system for a video disc player'1978 4,084,691'Video disc package'1978 4,053,161'Stylus arm lifting/lowering apparatus for a video disc player'1977 4,049,280'Pickup cartridge'1977 4,040,634'Overhead disc record grounding apparatus'1977 4,040,635'Releasable stylus arm magnetic coupling'1977 4,031,546'Disc player and stylus therefor'1977 3,993,863'Disc record groove skipper'1976 3,954,272'Signal pickup return mechanism'1976 3,952,147'Pickup arm cartridge'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1982Patents assigned to RCA CORP (13)· patent assignee history

1976–2011Based in Princeton, NJ, US· patent location history

1976–1977Based in South Brunswick, NJ, US· patent location history

1998Patents assigned to SARNOFF DAVID RES CENTER (1)· patent assignee history

1999–2011Patents assigned to SARNOFF CORP (15)· patent assignee history

2000Patents assigned to PPG IND OHIO INC (1)· patent assignee history

2001–2002Patents assigned to DELSYS PHARMACEUTICAL CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SARNOFF CORP	15	1999–2011
RCA CORP	13	1976–1982
DELSYS PHARMACEUTICAL CORP	2	2001–2002
PPG IND OHIO INC	1	2000
SARNOFF DAVID RES CENTER	1	1998

Locations

Location	Patents	Span
Princeton, New Jersey, US	26	1976–2011
South Brunswick, New Jersey, US	6	1976–1977