Patents related to DLMS/COSEM

Communications technologies are in many cases subject to large numbers of patents. Patents that have been brought to the attention of the DLMS User Association are listed on this page.

This document is provided purely for informational purposes.

Please note that the DLMS User Association makes not guarantee as to the completeness or correctness of the information supplied.  However, you may assume that if information is not included (for example, the patent number), that information has not been made available to the DLMS User Association.

The DLMS User Association accepts no liability for this list.  This is not an exhaustive list of patents, and applications of the DLMS/COSEM protocol may or may not fall within the scope of the listed or other patents.

The relevant DLMS UA Intellectual Property and Copyrights Policy (DLMS UA IPCP) is here

Members contributions’ objective is to ensure compatibility of technologies and systems on a worldwide basis. To meet this objective, which is in the common interests of all those participating in the standardization work, it must be ensured that contributions, their applications, use, etc. are accessible to everybody. It follows, therefore, that a patent embodied fully or partly in a contribution must be accessible to everybody without undue constraints. One of the requirements of the DLMS UA Intellectual Property and Copyrights Policy (DLMS UA IPCP) is to define this code of practice. The detailed arrangements arising from patents (licensing, royalties, etc.) are left to the parties concerned, as these arrangements might differ from case to case.

If you hold a patent or are aware of a patent that should be on this list then please contact us at L_moc__smld--lacinhcet with details of the patent.



Patent holder

Patent number

Approval date

Expiry date

Patent authority




Itron, Inc.

US 8,024,724 B2



United States of America

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