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Inventor

Stephen T. Crum

Inventor
Indianapolis, IN, US

Overview

3→
Patents
1984–1989
Patent span
Electricity
Primary field (CPC H)

Patents· 3 as inventor

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

G01Sprimary
G01SRadio direction-finding20%
H03JTuning resonant circuits20%
H04BTransmission20%
H05BElectric heating20%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications20%
PatentTitleYear
4,888,815'Scanning radio receiver'19894,887,086'Combination scanner and radar detector'19894,455,509'Intrinsically safe lighting system'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to CRUM STEPHEN T (1)· patent assignee history
1984Patents assigned to KEISTER LYLE T (1)· patent assignee history
1984Based in Barboursville, WV, US· patent location history
1989Patents assigned to TRYCOMM TECHNOLOGIES INC (1)· patent assignee history
1989Patents assigned to UNIDEN AMERICA CORP (1)· patent assignee history
1989Based in Indianapolis, IN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CRUM STEPHEN Tself11984
KEISTER LYLE T11984
TRYCOMM TECHNOLOGIES INC11989
UNIDEN AMERICA CORP11989
Locations
LocationPatentsSpan
Indianapolis, IN, US21989
Barboursville, WV, US11984