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Inventor

VRONDRAN KEVIN S

US7 patents
⚠️ This page may combine multiple inventors who share the name “VRONDRAN KEVIN S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

EAST JORDAN IRON WORKS INC

3 patents
US7832958B2Nov 16, 2010

Swing-out manhole cover

EAST JORDAN IRON WORKS INC9 citations80
US7905679B2Mar 15, 2011

Dual lifting manhole cover

EAST JORDAN IRON WORKS INC7 citations77
US7726903B2Jun 1, 2010

Manhole system

EAST JORDAN IRON WORKS INC5 citations60

VRONDRAN KEVIN S

2 patents
US8206058B2Jun 26, 2012

Manhole cover hinge assembly

VRONDRAN KEVIN S83 citations93
US8449216B2May 28, 2013

Manhole cover safety device

VRONDRAN KEVIN S9 citations77

EJ USA INC

2 patents
US8714867B1May 6, 2014

Explosion mitigating cover

EJ USA INC14 citations80
USD732944SJun 30, 2015

Security bolt

EJ USA INC1 citations50