Inventor

Robert H. Walden

Inventor

Newbury Park, CA, US

Overview

13→

Patents

1976–2003

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.

H10Dprimary

H10DInorganic electric semiconductor devices50%

H03MCoding20%

H03HImpedance networks, e.g. resonant circuits10%

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

G11CStatic stores5%

H03FAmplifiers5%

H03KPulse technique5%

PatentTitleYear

6,525,682'Photonic parallel analog-to-digital converter'2003 6,380,552'Low turn-on voltage InP Schottky device and method'2002 6,316,342'Low turn-on voltage indium phosphide Schottky device and method'2001 5,336,624'Method for disguising a microelectronic integrated digital logic'1994 5,202,591'Dynamic circuit disguise for microelectronic integrated digital logic circuits'1993 5,198,817'High-order sigma-delta analog-to-digital converter'1993 5,153,593'Multi-stage sigma-delta analog-to-digital converter'1992 4,967,250'Charge-coupled device with focused ion beam fabrication'1990 4,872,010'Analog-to-digital converter made with focused ion beam technology'1989 4,051,505'Two-dimensional transfer in charge transfer device'1977 3,989,956'Charge transfer binary counter'1976 3,944,850'Charge transfer delay line filters'1976 3,935,477'Analog inverter for use in charge transfer apparatus'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1977Patents assigned to BELL TELEPHONE LABOR INC (4)· patent assignee history

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

1976Based in New Providence, NJ, US· patent location history

1989–1994Patents assigned to HUGHES AIRCRAFT CO (6)· patent assignee history

1989–1990Based in Westlake Village, CA, US· patent location history

1992–2003Based in Newbury Park, CA, US· patent location history

2001–2003Patents assigned to HRL LAB LLC (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HUGHES AIRCRAFT CO	6	1989–1994
BELL TELEPHONE LABOR INC	4	1976–1977
HRL LAB LLC	3	2001–2003

Locations

Location	Patents	Span
Newbury Park, California, US	7	1992–2003
Westlake Village, California, US	2	1989–1990
Warren, New Jersey, US	2	1976–1977
New Providence, New Jersey, US	2	1976