Norman William Liefke

City:

Country:

Canada

Published Applications:

Last publication date:

2007-11-22

Patent Grants:

Last grant date:

2008-01-08

Top Inventors for applications by Norman William Liefke

These are the the leading inventors for applications assigned to Norman William Liefke:

Kuo-Ching Yao 1 Lu-chou City, Taiwan
Kuo-Ching Yao 1 Lu-chou, Taiwan
Norman William Liefke 1 Surrey.B.C., Canada
Norman William LIEFKE 1 Surrey, Canada

Recent patent applications by Norman William Liefke

Norman William Liefke based in , CA has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:

#1 | 2007-11-22 ✅ Patent 7,316,293 granted on 2008-01-08

US20070267252A1

Fixed constructions

Extension ladder with improved mechanism

AssigneeID:

401942 ⎘