Inventor

Leonard Jan-Peter Ketelsen

Inventor

Clinton, NJ, US

Overview

13→

Patents

1991–2016

Patent span

Electricity

Primary field (CPC H)

Patents· 13 as inventor

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

H01Sprimary

H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light52%

G02BOptical elements, systems or apparatus14%

H04BTransmission14%

G01NInvestigating or analysing materials by determining their chemical or physical properties5%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein5%

H04JMultiplex communication5%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation5%

PatentTitleYear

9,450,372'Wavelength tunable semiconductor laser'2016 9,025,958'Planar lightwave circuit optical multiplexer for non-sequential wavelength channels'2015 7,008,805'Optical device and method of manufacture thereof'2006 6,829,262'Aging in tunable semiconductor lasers'2004 6,704,472'Optoelectronic device having an integrated capacitor formed thereon and method of manufacturing the same'2004 6,310,902'Modulator for analog applications'2001 6,275,317'Hybrid integration of a wavelength selectable laser source and optical amplifier/modulator'2001 6,195,166'Photoreflectance spectral analysis of semiconductor laser structures'2001 6,162,655'Method of fabricating an expanded beam optical waveguide device'2000 5,506,859'Article comprising a DFB laser with loss coupling'1996 5,111,475'Analog optical fiber communication system, and laser adapted for use in such a system'1992 5,052,015'Phase shifted distributed feedback laser'1991 5,012,484'Analog optical fiber communication system, and laser adapted for use in such a system'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1992Patents assigned to AT & T BELL LAB (3)· patent assignee history

1991–1992Based in Fanwood, NJ, US· patent location history

1996–2016Based in Clinton, NJ, US· patent location history

2000–2001Patents assigned to LUCENT TECHNOLOGIES INC (2)· patent assignee history

2001Patents assigned to AGERE SYST OPTOELECTRONICS (2)· patent assignee history

2004–2006Patents assigned to TRIQUINT TECHNOLOGY HOLDING CO (2)· patent assignee history

2015–2016Patents assigned to AVAGO TECHNOLOGIES GENERAL IP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
AT & T BELL LAB	3	1991–1992
AGERE SYST OPTOELECTRONICS	2	2001
AVAGO TECHNOLOGIES GENERAL IP	2	2015–2016
LUCENT TECHNOLOGIES INC	2	2000–2001
TRIQUINT TECHNOLOGY HOLDING CO	2	2004–2006

Locations

Location	Patents	Span
Clinton, New Jersey, US	10	1996–2016
Fanwood, New Jersey, US	3	1991–1992