John Frederick "Jack" Sieberth
1925 - 2017
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John Frederick Sieberth aka Jack, aged 92, passed away peacefully on July 25, 2017 in his home in Baton Rouge, La., where he lived for the past 58 years. Jack was born on March 7, 1925 in Jamaica, New York. He received his B.S. in Chemistry in 1949 from Wayne State University and his Juris Doctorate in 1956 from the Detroit College of Law. After graduating from law school, Jack was admitted to the Michigan bar and worked as an in-house patent attorney for Ethyl Corporation for over 40 years where he was also listed as an inventor on several U.S. patents. After retiring from Ethyl in 1995, he founded the patent law boutique John F. Sieberth & Associates and grew the firm until 1999, when he and his partner, Drew Patty, formed the intellectual property law firm of Sieberth & Patty, LLC. In 2008, that firm merged with McGlinchey Stafford, PLLC, where Jack was a Member and ultimately completed his illustrious career in patent practice. Jack was a member in numerous professional organizations, including the American Bar Association and the Baton Rouge Bar Association. Jack was an American patriot, having served in the U.S. Army during WWII. Jack was also an accomplished pianist and composer, being an active member of the Baton Rouge Music Federation. Jack, with his wife Helen, traveled extensively, immersing himself in other world cultures. He was an avid reader of American history, a philatelist and an accomplished photographer. Being always involved with national and community affairs, he became a Scout Master for the Boy Scouts. He will be greatly missed by his children, Larry (Ming), Jim (Kathrin) and Joni, his grandchildren Paul and Laura, Helen and Jonathan (Laura), Kyle and Samantha, 10 great grandchildren and all those whose lives he touched. He is preceded in death by his parents, Frederick and Agnes Sieberth, his sister Dorothea Hatter, his loving wife Helen and a great grandson. The family wishes to thank Jack's caregivers, Rita, Pat and Trish for their loving care and diligence. A Memorial Service will be held at Greenoaks Funeral Home on Aug.7 at 7pm preceded by the visitation which will begin at 5pm. He will be laid to rest with his wife, Helen, in Grand Rapids, Michigan at Chapel Hill Memorial Gardens. Memorial gifts are suggested to Pennington Biomedical Research Foundation.

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Published in The Advocate from Aug. 3 to Aug. 7, 2017.
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2 entries
August 7, 2017
Jack was a wonderful man. My condolences to all of you. Sally Perry
August 1, 2017
Bill and Beth Maschewske
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