Senniger Powers History

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1919

Delos G. Haynes establishes office in St. Louis for the practice of patent, trademark and copyright law

1920s

Haynes joins Lloyd R. Koenig to practice as Haynes and Koenig

1929

Firm moves from Syndicate Trust Building to Paul Brown Building at Ninth Street and Olive Street

1930s

John D. Pope III joins the firm

1940s

Firm renames itself Koenig and Pope

1945

Stuart Senniger joins the firm

1946

Irving Powers joins the firm

1952

Don Leavitt joins the firm

1968

Firm moves to Railway Exchange Building

1969

John Roedel joins the firm

1950s-60s

Name changes from Koenig and Pope, to Koenig, Pope, Senniger and Powers, to Koenig, Senniger, Powers and Leavitt, then to Senniger, Powers, Leavitt and Roedel

1991

Firm moves to Metropolitan Square Building

2006

Firm renames itself Senniger Powers LLP

2008

Senniger Powers moves to the Bank of America Tower in downtown St. Louis

2009

Firm celebrates its 90th anniversary

Recent IP Headlines

08/15/2017

Senniger Powers Attorneys Included in The Best Lawyers in America® 2018

The Best Lawyers in America 2018 named fifteen Senniger Powers attorneys to its prestigious list.

06/20/2017

Chambers USA Recognizes Senniger Powers, Three Partners

Once again, Chambers USA has recognized Senniger Powers for its high-quality professionals and expertise in the intellectual property field.

06/12/2017

Senniger Powers Participates in St. Louis Internship Program 

Senniger Powers is participating again this year in the St. Louis Internship Program (SLIP).

05/23/2017

The Supreme Court Clarifies the Patent Venue Statute for Domestic Corporations

On May 22, 2017, the United States Supreme Court issued a unanimous (8-0) opinion in TC Heartland LLC v. Kraft Foods Group Brands LLC that will significantly change the way courts enforce the patent venue statute, giving a patentee less flexibility in choosing venue when asserting its patent.

05/10/2017

Paul Fleischut to Speak at Corporate Counsel Institute

Senniger Powers partner Paul Fleischut will be presenting an hour-long program on Hot Topics in IP Law for the Corporate Practitioner on Thursday, May 18, 2017.

05/04/2017

Federal Circuit Clarifies AIA On-Sale Bar Rule 

On May 1, 2017, the Federal Circuit held that the on-sale bar under 35 U.S.C. § 102(b) applies if knowledge of a sale is made public even if the details of the invention are not made public.

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