Image:Klein electrolyzer.png

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In general, the contents of United States patents are in the public domain.[1]

In specific cases, patent applicants and holders may claim copyright in portions of those documents. In those specific cases, applicants are required to identify the portions that are protected under copyright, and are additionally required to state the following within the body of the application and patent:[2] [3]

A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all (copyright or mask work) rights whatsoever.

The original patent should be checked for the presence of such language before an assumption is made that the contents are in the public domain.

Description	This is an image of the overall design of Dennis Klein's electrolyzer.
Source	Klein, Dennis (February, 2004). United States patent #6,689,259
Date	January 6'th, 2008
Author	Dennis Klein
Permission (Reusing this image)	This is a unique image with non existent alternatives, and is necessary to provide substantive information in the relevant article.

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	Date/Time	Dimensions	User	Comment
current	20:19, 6 January 2008	619×761 (52 KB)	Nseidm1 (Talk \| contribs)	({{Information \|Description=This is an image of the overall design of Dennis Klein's electrolyzer. \|Source= Klein, Dennis (February, 2004). United States patent #6,689,259 \|Date= January 6'th, 2008 \|Author= Dennis Klein \|Permission= This is a unique image )