LexDanaLexDanabeta
Inventor

Ronald R. Freiheit

Inventor
Owatonna, MN, US

Overview

6→
Patents
1996–2016
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 6 as inventor

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

E04Bprimary
E04BGeneral building constructions71%
A47BTables14%
LOC0614%
PatentTitleYear
9,404,252'Tunable acoustic panel'20169,145,675'Tunable acoustic panel'20157,921,960'Acoustic cabinet'2011D0606339'Cabinet grille'20097,600,608'Active acoustics performance shell'20095,525,765'Acoustical virtual environment'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2016Patents assigned to WENGER CORP (6)· patent assignee history
1996–2016Based in Owatonna, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WENGER CORP61996–2016
Locations
LocationPatentsSpan
Owatonna, Minnesota, US61996–2016