LexDanaLexDanabeta
Inventor

George A. Schoenfelder

Inventor
Batavia, IL, US

Overview

8→
Patents
1983–2003
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.

G08Bprimary
G08BSignalling systems, e.g. personal calling systems75%
A47CChairs13%
A62CFire-fighting13%
PatentTitleYear
6,521,907'Miniature photoelectric sensing chamber'20036,166,648'Aspirated detector'20005,947,207'Dual sprinkler system'19995,926,098'Aspirated detector'19995,058,227'Under-bed humidifier'19914,618,777'Outer electrode with improved smoke entry'19864,539,556'Combustion products detector with accelerated test'19854,374,329'Smoke detector with test apparatus'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2003Patents assigned to PITTWAY CORP (7)· patent assignee history
1983–1986Based in Downers Grove, IL, US· patent location history
1991Patents assigned to SCHOENFELDER GEORGE (1)· patent assignee history
1991–2003Based in Batavia, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PITTWAY CORP71983–2003
SCHOENFELDER GEORGEself11991
Locations
LocationPatentsSpan
Batavia, Illinois, US51991–2003
Downers Grove, Illinois, US31983–1986