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Inventor

Sydney J. Roth

Inventor
Largo, FL, US

Overview

7→
Patents
1976–1985
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 7 as inventor

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

F02Pprimary
F02PIgnition, other than compression ignition, for internal-combustion engines56%
G01RMeasuring electric variables22%
G01MTesting static or dynamic balance of machines or structures11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
4,502,324'Engine analyzer power check apparatus'19854,490,799'Ignition coil test apparatus'19844,476,531'Engine analyzer with digital waveform display'19844,472,779'Engine timing apparatus for use in testing'19844,423,378'Automotive battery test apparatus'19834,079,311'Ignition timing measuring apparatus'19784,000,456'Engine diagnostic apparatus'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1978Patents assigned to APPLIED POWER INC (2)· patent assignee history
1976Based in Edina, MN, US· patent location history
1978Based in New Berlin, WI, US· patent location history
1983–1985Patents assigned to BEAR AUTOMOTIVE SERVICE EQUIP (5)· patent assignee history
1983–1985Based in Largo, FL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BEAR AUTOMOTIVE SERVICE EQUIP51983–1985
APPLIED POWER INC21976–1978
Locations
LocationPatentsSpan
Largo, Florida, US51983–1985
New Berlin, WI, US11978
Edina, Minnesota, US11976