Inventor
KOPRAS ROBERT K
US16 patents
⚠️ This page may combine multiple inventors who share the name “KOPRAS ROBERT K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROTO ZIP TOOL CORP
9 patentsUS5902080AMay 11, 1999
Spiral cutting tool with detachable battery pack
ROTO ZIP TOOL CORP234 citations98
US6443676B1Sep 3, 2002
Automatic locking depth guide for cutting tools and the like
ROTO ZIP TOOL CORP87 citations97
US6443675B1Sep 3, 2002
Hand-held power tool
ROTO ZIP TOOL CORP229 citations97
US6048260AApr 11, 2000
Angle attachment for power tool
ROTO ZIP TOOL CORP91 citations97
US5323823AJun 28, 1994
Wood router bit
ROTO ZIP TOOL CORP57 citations95
US5143490ASep 1, 1992
Bit for cutting sheetrock
ROTO ZIP TOOL CORP55 citations95
USD473770SApr 29, 2003
Power tool with automatic locking depth guide
ROTO ZIP TOOL CORP9 citations73
USD465712SNov 19, 2002
Power tool with automatic locking depth guide
ROTO ZIP TOOL CORP9 citations73
USD465393SNov 12, 2002
Automatic locking depth guide
ROTO ZIP TOOL CORP8 citations71
CREDO TECH CORP
4 patentsUS7094011B2Aug 22, 2006
Power tool
CREDO TECH CORP51 citations94
US7131180B2Nov 7, 2006
Attachment for power tool
CREDO TECH CORP37 citations91
US6926477B2Aug 9, 2005
Jig assembly
CREDO TECH CORP45 citations91
US6854938B2Feb 15, 2005
Automatic locking depth guide for cutting tools and the like
CREDO TECH CORP35 citations91