Inventor

Francis A. Scherpenberg

Inventor

Carrollton, TX, US

Overview

1987–2000

Patent span

Physics

Primary field (CPC G)

Patents· 22 as inventor

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

G11Cprimary

G11CStatic stores16%

G06FElectric digital data processing14%

G06KGraphical data reading9%

G04GElectronic time-pieces7%

G05BControl or regulating systems in general7%

H03MCoding7%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers7%

H10DInorganic electric semiconductor devices7%

H01RElectrically-conductive connections5%

H05KPrinted circuits5%

PatentTitleYear

6,145,035'Card cradle system and method'2000 6,108,751'Single wire data communication method'2000 5,974,504'Metal token having units of value stored therein using a single wire communication method'1999 5,914,543'Systems and methods for memory control'1999 5,864,872'Single wire communication system'1999 5,717,935'Digital potentiometer'1998 5,647,121'Method of assembling electronic component'1997 5,587,955'Electronic token'1996 5,581,507'Systems and methods for memory control'1996 5,579,206'Enhanced low profile sockets and module systems'1996 5,548,550'Nonvolatile control architecture'1996 5,544,063'Digital controller'1996 5,528,463'Low profile sockets and modules for surface mountable applications'1996 5,517,470'Nonvolatile control architecture'1996 5,473,279'Integrated compander amplifier circuit with digitally controlled gain'1995 5,315,549'Memory controller for nonvolatile RAM operation, systems and methods'1994 5,218,707'Integrated circuit with remappable interrupt pins'1993 5,164,613'Reset monitor'1992 5,010,331'Time-key integrated circuit'1991 4,977,537'Dram nonvolatizer'1990 D0301713'Portable memory module'1989 4,645,943'Space-saving back-up power supply'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–2000Patents assigned to DALLAS SEMICONDUCTOR (22)· patent assignee history

1987–1999Based in Carrollton, TX, US· patent location history

1989–2000Based in Dallas, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DALLAS SEMICONDUCTOR	22	1987–2000

Locations

Location	Patents	Span
Carrollton, Texas, US	16	1987–1999
Dallas, Texas, US	6	1989–2000