Andrew H. Hilliard

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Washer assembly for use in affixing a guardrail support to a surface
- Patent number 10,767,386
- Issue date Sep 8, 2020
- Safety Maker, Inc.
- Andrew Hilliard
- E04 - BUILDING
Information Patent Grant
Apparatus for forming temporary guardrails on stairs
- Patent number 9,598,870
- Issue date Mar 21, 2017
- Safety Maker, Inc.
- Miguel Osvaldo Gutierrez
- E04 - BUILDING
Information Patent Grant
Apparatus for forming temporary guardrail on stairs
- Patent number 9,493,959
- Issue date Nov 15, 2016
- Safety Maker, Inc.
- Miguel Osvaldo Gutierrez
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
Washer Assembly for Use in Affixing a Guardrail Support to a Surface
- Publication number 20180016808
- Publication date Jan 18, 2018
- Safety Maker, Inc.
- Andrew Hilliard
- E04 - BUILDING
Information Patent Application
Apparatus for Forming Temporary Guardrails on Stairs
- Publication number 20160333593
- Publication date Nov 17, 2016
- Safety Maker, Inc.
- Miguel Osvaldo Gutierrez
- E04 - BUILDING
Information Patent Application
Apparatus for Forming Temporary Guardrail on Stairs
- Publication number 20120205604
- Publication date Aug 16, 2012
- Miguel Osvaldo Gutierrez
- E04 - BUILDING