Inventor

Peter R. Herczfeld

Inventor

Philadelphia, PA, US

Overview

15→

Patents

1987–2010

Patent span

Electricity

Primary field (CPC H)

Patents· 15 as inventor

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

H01Qprimary

H01QAntennas, i.e. radio aerials18%

G02BOptical elements, systems or apparatus9%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein9%

H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner9%

H03HImpedance networks, e.g. resonant circuits9%

H04BTransmission9%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation9%

A61BDiagnosis5%

B82YSpecific uses or applications of nanostructures5%

G01SRadio direction-finding5%

PatentTitleYear

7,835,650'Optical domain frequency down-conversion of microwave signals'2010 7,305,152'Attenuating counter-propagating optical phase modulation'2007 7,010,339'Hybrid lidar-radar for medical diagnostics'2006 6,654,401'Multiple laser source, and systems for use thereof'2003 5,822,047'Modulator LIDAR system'1998 5,536,954'Optically coupled MESFET'1996 5,453,630'Variable gain optical detector'1995 5,428,225'Coupled quantum well optical intensity modulator for INP based optoelectronic integrated circuits and methods therefor'1995 5,229,665'Optically controlled active impedance element and filters employing the same'1993 5,198,783'Optically controlled active impedance element particularly suited for a microwave oscillator'1993 5,164,736'Optical antenna beam steering using digital phase shifter control'1992 4,859,965'Optical gain control of GaAs microwave monolithic integrated circuit distributed amplifier'1989 4,814,774'Optically controlled phased array system and method'1989 4,751,513'Light controlled antennas'1988 4,675,624'Electrical phase shifter controlled by light'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2010Patents assigned to UNIV DREXEL (3)· patent assignee history

1987–1988Patents assigned to RCA CORP (2)· patent assignee history

1987–2006Based in Philadelphia, PA, US· patent location history

1989–1998Patents assigned to US ARMY (5)· patent assignee history

1992–2006Patents assigned to US NAVY (4)· patent assignee history

2003Patents assigned to F & H APPLIED SCIENCE ASSOCIAT (1)· patent assignee history

2007–2010Based in Bala Cynwyd, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
US ARMY	5	1989–1998
US NAVY	4	1992–2006
UNIV DREXEL	3	1987–2010
RCA CORP	2	1987–1988
F & H APPLIED SCIENCE ASSOCIAT	1	2003

Locations

Location	Patents	Span
Philadelphia, Pennsylvania, US	13	1987–2006
Bala Cynwyd, Pennsylvania, US	2	2007–2010