Thunder Bay
Canada
4
2012-07-26
2
2015-07-21
These are the the leading inventors for applications assigned to Gerda Walther:
Gerda Walther based in Thunder Bay, CA has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
Screw having underside cutters and pockets
#2 | 2011-09-01 ✅ Patent 8,591,159 granted on 2013-11-26Screw having underside pockets
#3 | 2011-03-17SCREW HAVING UNDERSIDE CUTTERS AND POCKETS
#4 | 2006-12-21Screw For Use In Concrete
186867 ⎘