LexDanaLexDanabeta
Inventor

Phillip C. Dretzka

Inventor
Minneapolis, MN, US

Overview

3→
Patents
1995–2004
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

B43Lprimary
B43LArticles for writing or drawing upon50%
LOC2350%
PatentTitleYear
D0498103'Soap dish'20045,501,603'Modularized visual training aid for classroom instruction'1996D0361348'Modularized visual training aid for classroom instruction'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–1996Patents assigned to WENGER CORP (2)· patent assignee history
1995–1996Based in Minneapolis, MN, US· patent location history
2004Patents assigned to INTERDESIGN INC (1)· patent assignee history
2004Based in Cleveland Heights, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WENGER CORP21995–1996
INTERDESIGN INC12004
Locations
LocationPatentsSpan
Minneapolis, Minnesota, US21995–1996
Cleveland Heights, OH, US12004