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Donald J. Ersler, S.C.

Donald J. Ersler, S.C. offers patent writing and filing; patent searching and evaluation; patent infringement opinions; patent litigation; trademark filing; trademark searching;
advice for designing around patented products; Pro se Patent Help; and Pro se Trademark Help.

Website: itspatentable.com

Contact Information

Donald J. Ersler
1165 Terrace Drive., Elm Grove, WI 53122
Elm Grove, Wisconsin 53122
Tel: 262.785.0160
Email:

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