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Donald J. Ersler, S.C.
Patent & Trademark Attorney

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Free Initial Consultation

As your patent agent, Don will quote a flat fee for all legal needs related to obtaining your patent, like invention licensing, so you will know all legal costs before you start. Don works with inventors, design departments, and corporate attorneys in the USA and around the world from his office near Milwaukee, Wisconsin, USA.

Click here for a Free initial patent consultation

We specialize in protecting your patentable ideas. I charge flat fees for most of my work (unlike my competitors), so you will have a reasonable idea of the cost before you start. I also offer prosecution and defense of patent disputes for a fee of $250/hr plus disbursements. Credit cards accepted.