Elkins Earthworks, LLC

The following Envision product models may be covered by one or more U.S. patents or pending U.S. patent applications. Patent markings are listed by product model.

U.S. Patents

Product model	Patent markings
ENV100	U.S. Patent No. 8,168,121 U.S. Patent No. 8,163,242 U.S. Patent No. 9,592,543 U.S. Patent No. 10,150,146 U.S. Patent No. 11,504,754 U.S. Patent No. 11,872,609 U.S. Patent No. 12,214,390
ENV200	U.S. Patent No. 8,168,121 U.S. Patent No. 8,163,242 U.S. Patent No. 9,592,543 U.S. Patent No. 10,150,146 U.S. Patent No. 11,504,754 U.S. Patent No. 11,872,609 U.S. Patent No. 12,214,390
ENVHCH	U.S. Patent No. 8,168,121 U.S. Patent No. 8,163,242 U.S. Patent No. 9,592,543 U.S. Patent No. 10,150,146 U.S. Patent No. 11,504,754 U.S. Patent No. 11,872,609 U.S. Patent No. 12,214,390 U.S. Patent No. 12,359,948

U.S. Patent Applications / Patents Pending

Product model	Published applications
ENV100	U.S. Patent Application Publication No. 2025/0128303
ENV200	U.S. Patent Application Publication No. 2025/0128303
ENVHCH	U.S. Patent Application Publication No. 2025/0128303

Additional patents and applications may apply. This list may be updated from time to time.