Osha Attorneys
Osha Attorneys
Osha Attorneys
Osha Attorneys
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The collective expertise of our global team distinguishes OBWB in the field of Intellectual Property Law. We align our best resources to meet each client's specific needs and we treat each matter with the highest degree of attention and care.

12600 Hill Country Blvd.
Suite 275, Austin   TX 78738
P: 512.480.0667
F: 713.228.8778

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Osha Liang LLP
1200 Pearl St. Ste. 314
Boulder, CO   80302
P: 713.228.8600
F: 713.228.8778

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8/F, Hangzhou Kerry Center
385 Yan An Rd.
Hangzhou, China   310006
P: +86.571.2689.2537
F: +86.571.2689.2700

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Two Houston Center
909 Fannin
Suite 3500, Houston   TX 77010
P: 713.228.8600
F: 713.228.8778

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2 Rue de la Paix
75002 Paris, France
P: +33.1.4494.8630
F: +33.1.4494.8631

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Level 28 Shinagawa Intercity Tower A
2-15-1 Konan Minato-ku
Tokyo, Japan   108-6028
P: 81.3.6717.2877
F: 81.3.6717.2878

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1701 Pennsylvania Ave.
NW Suite 200
Washington, DC   20006
P: 713.228.8600
F: 713.228.8778

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Patent Office Trials

Osha Bergman Watanabe & Burton’s litigation and patent prosecution lawyers work together to bring legal and technical expertise to administrative Patent Office Trials. We represent both patent owners and patent validity challengers in Inter Partes Review and Post-Grant Review proceedings before the Patent Trial and Appeal Board of the U.S. Patent and Trademark Office and in the Legal and Opposition Divisions and Boards of Appeal of the European Patent Office.  As a direct result of our knowledge, skill, and experience, we strive to achieve the best outcome for our clients.

Our attorneys strategically guide clients through post-grant validity challenge proceedings to maximize their advantage and leverage in business settings and, as is often the case, related infringement litigation settings.  By understanding the entire context of our clients’ status in the marketplace and position vis-à-vis their competitors, focusing on our clients’ business goals, and continuously formulating, reevaluating and adjusting strategies according to ever-changing circumstances, we navigate through and overcome the ordinary and complex traps and pitfalls of Patent Office Trial practice. 

Our team members are frequent conference speakers and article authors on topics concerning not only the basics of Patent Office Trials, but also the subtler, yet often critically important and overlooked, strategic considerations encountered both before and throughout post-grant proceedings.

Our Patent Office Trials team also guides clients through less commonly used dispute procedures including ex parte reexamination, supplemental examination, and derivation proceedings.