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Don Ersler is a patent attorney with 20 years of experience in patent law, plus bachelor degrees in mechanical and electronic engineering, 12 years of design engineering experience, and a juris doctor in law. Mr. Ersler has the know-how and skills to write the strongest possible patent application and work around prior art. Mr. Ersler also offers patent searching, patent infringement analysis, patent litigation, trademark prosecution and trademark litigation, all at a reaonsable price.
4
Practice Areas
31 years | 500 cases
31 years | 20 cases
31 years | 40 cases
31 years | 200 cases
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Chat withState: Wisconsin
Acquired: 1994
No misconduct found
1165 Terrace Drive., Elm Grove, WI, 53122
4 Client Reviews
Showing 1 - 4 of 4 reviews
Posted by Robert | February 25, 2019 | Hired Attorney | Patent Application
TOOLS TO PATENT TO IS STORES
I have been inventing for 60 years MR. Ersler is my third patent attorney He gets it done many patent claims Mr Ersler has filed 12 patents for me 3 has went to market Two with LOWES new style Vise Grip Pliers one with Rockler Wood A Sawhorse clamp You cant go wrong w...
Posted by Jerry | December 15, 2016 | Hired Attorney | Patent Application
I'll keep this short but sweet
This was my first time applying for a patent, I am a service technician with some ideas and I am really lucky and grateful that I meet and used Donald's services to help educate and guide me through this complicated process to a very successful conclusion. Thanks again Donald, Jerry
Posted by Bernard | June 11, 2015
Responsive, knowledgeable, Accessible, Timely, Efficient & a TRUE Professional!
Mr. Donald Ersler guided me through what I thought was going to be a very pain-staking process. Instead it was efficient, timely, educational and painless. From the beginning of the process to the end Mr. Ersler kept me constantly and instantaneously informed with every action taken. I was informed a...
Posted by William | April 21, 2015 | Patent Application
Patent Representation - Recommendation without reservation
Mr Ersler has represented me since the beginning of 2014 to secure a utility patent through the USPTO. The Nonprovisional Patent Application was filed in February of 2014. The Notice of Allowance for the patent was provided from the USPTO in January of 2015. During his engagement Mr Ersler has p...
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1995 - Present
Owner, Donald J. Ersler, S. C.
2008 - Present
Waukesha County Bar Association
1993
JD - Juris Doctor
N/A
BS - Bachelor of Science
English
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