Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Univation Technologies › Fred D. Ehrman
FE

Fred D. Ehrman — 21 Patents

UTUnivation Technologies: 18 patents #33 of 289Top 15%
ExxonMobil: 3 patents #3,063 of 10,161Top 35%
Houston, TX: #930 of 21,073 inventorsTop 5%
Texas: #6,491 of 125,132 inventorsTop 6%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Fred D. Ehrman has been granted 21 US patents while listed as an inventor at Univation Technologies. The first was granted in 2004 and the most recent in March 2022. Fred D. Ehrman ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Fred D. Ehrman in Houston, TX, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11274170 Polymerization process Corrine L. Brandl, James R. Lattner 2022-03-15 $502,346,000
10377841 Polymerization process David J. Sandell, Marc L. De Chellis 2019-08-13 $189,644,000
8058366 Polymerization monitoring and method of selecting leading indicators David J. Sandell, Marjorie E. King 2011-11-15
7855253 High density polyethylene and articles made therefrom Porter C. Shannon 2010-12-21
7838605 Polymerization monitoring and control using improved leading indicators David J. Sandell, Marjorie E. King 2010-11-23
7799877 Polymerization monitoring and control using leading indicators Kenneth G. Schurzky, Robert Santana, Pradeep P. Shirodkar 2010-09-21
7595364 High density polyethylene Porter C. Shannon 2009-09-29
7585923 Polymerization monitoring and method of selecting leading indicators David J. Sandell, Marjorie E. King 2009-09-08
7393916 Method of reducing gels in polyolefins Anthony C. Neubauer, H. Rodney Tunnell, III 2008-07-01
7238756 Polymerization process and control of polymer composition properties Pradeep P. Shirodkar, Mark Bradley Davis, Daniel P. Zilker, Jr., Porter C. Shannon 2007-07-03
7101629 Polyethylene films Porter C. Shannon, Rakesh Kumar, Pradeep P. Shirodkar, Mark Bradley Davis, Keith W. Trapp +1 more 2006-09-05
7090927 Polyethylene films Porter C. Shannon, Rakesh Kumar, Pradeep P. Shirodkar, Mark Bradley Davis, Keith W. Trapp +1 more 2006-08-15
6995235 Methods of producing polyolefins and films therefrom Rainer Kolb, Chi-I Kuo, Porter C. Shannon, Keith W. Trapp 2006-02-07
6943134 Bimodal polyolefin production process and films therefrom Chi-I Kuo, G. McCullough Laughlin, Pradeep P. Shirodkar, Porter C. Shannon, Robert Santana +2 more 2005-09-13
6878454 Polyethylene films Porter C. Shannon, Rakesh Kumar, Pradeep P. Shirodkar, Mark Bradley Davis, Keith W. Trapp +1 more 2005-04-12
6875828 Bimodal polyolefin production process and films therefrom Chi-I Kuo, G. McCullough Laughlin, Pradeep P. Shirodkar, Porter C. Shannon, Robert Santana +2 more 2005-04-05
6870023 Reactor wall coating and processes Michael E. Muhle, Porter C. Shannon 2005-03-22 $152,819,000
6833416 Methods of polymerizing olefin monomers with mixed catalyst systems Michael A. Kinnan, Pradeep P. Shirodkar, Mark Bradley Davis, Michele Lynn Grief-Rust 2004-12-21
6833417 Processes for transitioning between chrome-based and mixed polymerization catalysts Mark Bradley Davis, Ronald S. Eisinger, Mark G. Goode, Michael A. Kinnan 2004-12-21
6828395 Polymerization process and control of polymer composition properties Pradeep P. Shirodkar, Robert Santana, Porter C. Shannon 2004-12-07
6753390 Gas phase polymerization process Michael E. Muhle, Pradeep P. Shirodkar, Keith W. Trapp 2004-06-22

Nearby-Ranked Inventors

Subhash Sankuratripati21
Brian Riordan21
Woongki Min21
Jeremy Cailleteau21
Shigeru Chiba21
Cecilia Carbonelli21
Pin-Wen Chen21
Michael Danz21
Paul Kolen21