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Inventor

ZIELONKA ROBERT RICHARD

US10 patents
⚠️ This page may combine multiple inventors who share the name “ZIELONKA ROBERT RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NOVAK JOSEPH THOMAS

5 patents
USD701544SMar 25, 2014

Hole saw

NOVAK JOSEPH THOMAS43 citations97
USD692470SOct 29, 2013

Hole saw

NOVAK JOSEPH THOMAS48 citations97
USD687472SAug 6, 2013

Hole saw

NOVAK JOSEPH THOMAS46 citations97
USD659176SMay 8, 2012

Hole saw

NOVAK JOSEPH THOMAS37 citations95
US9434033B2Sep 6, 2016

Hole cutter with extruded cap

NOVAK JOSEPH THOMAS0 citations51

IRWIN IND TOOL CO

3 patents
USD711441SAug 19, 2014

Hole saw

IRWIN IND TOOL CO47 citations97
USD789428SJun 13, 2017

Hole saw

IRWIN IND TOOL CO18 citations92
USD765159SAug 30, 2016

Hole saw

IRWIN IND TOOL CO14 citations92

ZIELONKA ROBERT RICHARD

2 patents
USD690334SSep 24, 2013

Hole saw

ZIELONKA ROBERT RICHARD41 citations95
US9586270B2Mar 7, 2017

Coated hole cutter

ZIELONKA ROBERT RICHARD5 citations70