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Inventor

Richard W. Rentfrow

Inventor
Blacksberg, VA, US

Overview

2→
Patents
1984–2003
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 2 as inventor

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

F42Bprimary
F42BExplosive charges, e.g. for blasting, fireworks, ammunition50%
F42CAmmunition fuzes50%
PatentTitleYear
6,539,871'Degradable practice mine'20034,471,698'Mass-spring rainhead'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to HONEYWELL INC (1)· patent assignee history
1984Based in Hennepin, MN, US· patent location history
2003Patents assigned to ALLIANT TECHSYSTEMS INC (1)· patent assignee history
2003Based in Blacksberg, VA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ALLIANT TECHSYSTEMS INC12003
HONEYWELL INC11984
Locations
LocationPatentsSpan
Blacksberg, Virginia, US12003
Hennepin, Minnesota, US11984