Paul Hopfer

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Holly Springs, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Filter clamp lock
- Patent number 10,995,781
- Issue date May 4, 2021
- Pentair Water Pool and Spa, Inc.
- Leonard Richiuso
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Filter clamp lock
- Patent number 10,563,682
- Issue date Feb 18, 2020
- Pentair Water Pool and Spa, Inc.
- Leonard Richiuso
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Filter clamp lock
- Patent number 10,082,164
- Issue date Sep 25, 2018
- Pentair Water Pool and Spa, Inc.
- Leonard Richiuso
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Filter clamp lock
- Patent number 9,194,493
- Issue date Nov 24, 2015
- Pentair Water Pool and Spa, Inc.
- Leonard Richiuso
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
FILTER CLAMP LOCK
- Publication number 20200182274
- Publication date Jun 11, 2020
- Pentair Water Pool and Spa, Inc.
- Leonard Richiuso
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Application
Filter Clamp Lock
- Publication number 20190024686
- Publication date Jan 24, 2019
- Pentair Water Pool and Spa, Inc.
- Leonard Richiuso
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Filter Clamp Lock
- Publication number 20160040696
- Publication date Feb 11, 2016
- Pentair Water Pool and Spa, Inc.
- Leonard Richiuso
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information Patent Application
Filter Clamp Lock
- Publication number 20130081256
- Publication date Apr 4, 2013
- Leonard Richiuso
- F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS