Mark D. Matzner has been granted 25 US patents while listed as an inventor at S.P.M. Flow Control. The first was granted in 1993 and the most recent in May 2018. Mark D. Matzner ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Mark D. Matzner in Burleson, TX, US.