Doug R. Jeffery has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A coaster or trivet includes a liquid impervious base and a liquid absorbent gel disposed on the base. The gel may comprise a hydrogel including a plurality of gel layers. Each gel layer is a different adhesive property with a first gel layer having a relatively high peel strength for contacting the base and a second gel layer having a relatively low peel strength for removably contacting a container.
Abstract: A coaster or trivet includes a liquid impervious base and a liquid absorbent gel disposed on the base. The gel may comprise a hydrogel including a plurality of gel layers. Each gel layer is a different adhesive property with a first gel layer having a relatively high peel strength for contacting the base and a second gel layer having a relatively low peel strength for removably contacting a container.
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