Inventor

Karl-Friedrich Etzold

Inventor

Briarcliff Manor, NY, US

Overview

8→

Patents

1976–2003

Patent span

Physics

Primary field (CPC G)

Patents· 8 as inventor

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

G06Fprimary

G06FElectric digital data processing20%

G11BInformation storage based on relative movement between record carrier and transducer20%

G01NInvestigating or analysing materials by determining their chemical or physical properties13%

B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general7%

G01BMeasuring length, thickness or similar linear dimensions7%

G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves7%

G01KMeasuring temperature7%

H05KPrinted circuits7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

Y10TTechnical subjects covered by former us classification7%

PatentTitleYear

6,586,058'Equipment packages for shock resistance'2003 6,453,266'Peak detecting shock gauge and damage diagnostic for mobile and handheld computers'2002 6,239,936'Method and apparatus for calibrating a thermal response of a magnetoresistive element'2001 5,806,978'Calibration apparatus and methods for a thermal proximity sensor'1998 5,051,736'Optical stylus and passive digitizing tablet data input system'1991 4,349,902'Piezoelectric transducer for recording video information'1982 4,181,864'Matching network for switchable segmented ultrasonic transducers'1980 3,969,578'Visual display of ultrasonic radiation pattern'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1982Patents assigned to RCA CORP (3)· patent assignee history

1976–1980Based in New York, NY, US· patent location history

1982Based in Hillside, NJ, US· patent location history

1991–2003Patents assigned to IBM (5)· patent assignee history

1991–2003Based in Briarcliff Manor, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
IBM	5	1991–2003
RCA CORP	3	1976–1982

Locations

Location	Patents	Span
Briarcliff Manor, New York, US	5	1991–2003
New York, New York, US	2	1976–1980
Hillside, New Jersey, US	1	1982