Roy T. Hellwig

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Sequim, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Living roof and wall systems using cultivated mineral wool mats to...
- Patent number 9,440,411
- Issue date Sep 13, 2016
- ARCHIPHYTE, LLC
- Roy T. Hellwig
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
Living Roof and Wall Systems Using Cultivated Mineral Wool Mats to...
- Publication number 20110197504
- Publication date Aug 18, 2011
- Roy T. Hellwig
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING