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Inventor

David A. Blass

Inventor
River Grove, IL, US

Overview

2→
Patents
1977–1979
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

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

G07Cprimary
G07CTime or attendance registers25%
G08CTransmission systems for measured values, control or similar signals25%
H03JTuning resonant circuits25%
H03KPulse technique25%
PatentTitleYear
4,156,232'Single wire light control system'19794,021,741'Remote control with reduced responsiveness to interrupted actuating signals'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to ZENITH RADIO CORP (1)· patent assignee history
1977Based in Elmwood Park, IL, US· patent location history
1979Patents assigned to AEROFLASH SIGNAL CORP (1)· patent assignee history
1979Based in River Grove, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AEROFLASH SIGNAL CORP11979
ZENITH RADIO CORP11977
Locations
LocationPatentsSpan
River Grove, Illinois, US11979
Elmwood Park, Illinois, US11977