Inventor

Joel A. Karp

Inventor

Palo Alto, CA, US

Overview

11→

Patents

1977–2021

Patent span

Physics

Primary field (CPC G)

Patents· 11 as inventor

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

G11Cprimary

G11CStatic stores29%

H10BElectronic memory devices11%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%

H03KPulse technique7%

H10DInorganic electric semiconductor devices7%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h107%

Y10TTechnical subjects covered by former us classification7%

A61KPreparations for medical, dental or toiletry purposes4%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations4%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%

PatentTitleYear

11,021,687Production of differentiated enteroendocrine cells and insulin producing cells2021 11,020,410Self-assembled gels formed with anti-retroviral drugs, prodrugs thereof, and pharmaceutical uses thereof2021 4,679,171'MOS/CMOS memory cell'1987 4,675,848'Dynamic RAM memory'1987 4,413,327'Radiation circumvention technique'1983 4,233,675'X Sense AMP memory'1980 4,141,027'IGFET integrated circuit memory cell'1979 4,125,933'IGFET Integrated circuit memory cell'1978 4,069,474'MOS Dynamic random access memory having an improved sensing circuit'1978 4,031,522'Ultra high sensitivity sense amplifier for memories employing single transistor cells'1977 4,025,907'Interlaced memory matrix array having single transistor cells'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1979Patents assigned to BURROUGHS CORP (4)· patent assignee history

1977–1980Based in Palo Alto, CA, US· patent location history

1978–1980Patents assigned to NAT SEMICONDUCTOR CORP (2)· patent assignee history

1983Based in Cupertino, CA, US· patent location history

1987Patents assigned to VISIC INC (2)· patent assignee history

1987Based in Atherton, CA, US· patent location history

2021Patents assigned to BRIGHAM & WOMENS HOSPITAL INC (2)· patent assignee history

2021Patents assigned to MASSACHUSETTS INST TECHNOLOGY (1)· patent assignee history

2021Based in Brookline, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BURROUGHS CORP	4	1977–1979
BRIGHAM & WOMENS HOSPITAL INC	2	2021
NAT SEMICONDUCTOR CORP	2	1978–1980
VISIC INC	2	1987
MASSACHUSETTS INST TECHNOLOGY	1	2021

Locations

Location	Patents	Span
Palo Alto, California, US	6	1977–1980
Brookline, Massachusetts, US	2	2021
Atherton, California, US	2	1987
Cupertino, California, US	1	1983