Douglas A. Kieper

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Clovis, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Coupling
- Patent number 9,261,215
- Issue date Feb 16, 2016
- NIBCO Inc.
- Douglas A. Kieper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Vented ball valve with lock-out ring
- Patent number 5,785,074
- Issue date Jul 28, 1998
- Nibco, Inc.
- Douglas A. Kieper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Flood protection sewer backflow control valve and adapter assembly
- Patent number 5,775,365
- Issue date Jul 7, 1998
- Nibco, Inc.
- Stuart E. Hayden
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Flood protection sewer backflow control valve and adapter assembly
- Patent number 5,577,531
- Issue date Nov 26, 1996
- Nibco, Inc.
- Stuart E. Hayden
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Valve lock
- Patent number 5,427,135
- Issue date Jun 27, 1995
- Nibco, Inc.
- Douglas A. Kieper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Vented ball valve with lock-out ring
- Patent number 5,360,036
- Issue date Nov 1, 1994
- Nibco, Inc.
- Douglas A. Kieper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
PLUMBING ADAPTER COUPLING
- Publication number 20150369411
- Publication date Dec 24, 2015
- NIBCO Inc.
- Douglas A. Kieper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
COUPLING
- Publication number 20130277964
- Publication date Oct 24, 2013
- NIBCO INC.
- Douglas A. Kieper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...