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Litigated over 350 IPR & CBM cases and over 60 Federal Circuit appeals

Lowenstein & Weatherwax is one of the nation’s most active and top performing IPR firms. L&W was identified by Patexia as the fifth most active and seventh best performing IPR firm representing patent owners in the country (out of over 700 law firms) for the 2019-2024 period and as the top performing IPR firm in the country for the 2013-2018 period.

Attorneys

Lowenstein & Weatherwax’s attorneys include seasoned litigators who are amongst the most experienced IPR litigators in the country.

Meet our attorneys

Focus

Lowenstein & Weatherwax 2023 News Round Up

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Lowenstein & Weatherwax LLP attorneys have significant expertise in IPR litigation, and have represented companies from a variety of technological areas, including semiconductors, computer hardware and software, medical device, pharmaceutical and biotechnology. Our attorneys have successfully represented numerous large and reputable companies, obtaining and defending against claims totaling billions of dollars on their behalf.

PRACTICE AREAS

  • Patent Post-Grant (IPR)
  • Patent Litigation
  • Appellate

Patent Post-Grant (IPR)

L&W’s attorneys have represented patent owners in over 300 IPRs and CBMs, garnering a strong track record of success in high stakes matters against top notch competition.

Patent Litigation

L&W can and does litigate patents in virtually any technology. Its experienced attorneys have litigated intellectual property in such technologies as semiconductor packaging and microelectronics, digital video recorders, implantable heart valve repair products, video game controllers and distribution channels, pharmaceutical drugs and drug delivery, delivery, smartphone user interfaces, electronic commerce and a multitude of others.

Appellate

L&W has litigated nearly 60 cases before the Federal Circuit and one in the United States Supreme Court

Efficiency & Experience

L&W’s success in IPR matters has been widely recognized. In 2018, Patexia identified L&W as being the best performing law firm in IPRs out of over 1100 law firms over the 2013-2018 time period. For the 2019-2024 period, Patexia identified L&W as the fifth most active and 7th best performing firm (out of over 700 firms) representing patent owners.

Efficiency