Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RJ

Robert T. Fitzsimons, Jr.

3M: 36 patents #259 of 11,543Top 3%
Minneapolis, MN: #99 of 6,114 inventorsTop 2%
Minnesota: #1,515 of 52,454 inventorsTop 3%
Overall (All Time): #93,704 of 4,157,543Top 3%
36 Patents All Time

Issued Patents All Time

Showing 26–36 of 36 patents

Patent #TitleCo-InventorsDate
8338497 Method of making macroporous anion exchange resins Jerald K. Rasmussen, Kannan Seshadri, Simon K. Shannon, Peter D. Wickert, James I. Hembre 2012-12-25
8338496 Method of making macroporous cation exchange resins Jerald K. Rasmussen, Kannan Seshadri, Simon K. Shannon, Peter D. Wickert, James I. Hembre 2012-12-25
7683100 Method of making macroporous cation exchange resins Jerald K. Rasmussen, Kannan Seshadri, Simon K. Shannon, Peter D. Wickert, James I. Hembre 2010-03-23
7674836 Method of making macroporous cation exchange resins Jerald K. Rasmussen, Kannan Seshadri, Simon K. Shannon, Peter D. Wickert, James I. Hembre 2010-03-09
7674835 Method of making macroporous anion exchange resins Jerald K. Rasmussen, Kannan Seshadri, Simon K. Shannon, Peter D. Wickert, James I. Hembre 2010-03-09
7488422 Method and apparatus for separating a target molecule from a liquid mixture Andrew W. Rabins, Kelly J. Gibbens, Masayuki Nakamura, Kannan Seshadri, Larry J. Carson +1 more 2009-02-10
7413660 Single pass method and apparatus for separating a target molecule from a liquid mixture Kelly J. Gibbens, Masayuki Nakamura, Kannan Seshadri, Andrew W. Rabins, Larry J. Carson 2008-08-19
7087194 K-type polarizer and preparation thereof Todd D. Jones, Duane D. Fansler, Wayne S. Mahoney, Kevin M. Lewandowski, Michael S. Wendland +1 more 2006-08-08
6998179 Process for preparing a K-type polarizer Duane D. Fansler, Todd D. Jones, Babu N. Gaddam, Steven M. Heilmann, John J. Cael 2006-02-14
6949207 K-type polarizer and preparation thereof Todd D. Jones, Duane D. Fansler, Wayne S. Mahoney, Kevin M. Lewandowski, Michael S. Wendland +1 more 2005-09-27
6808657 Process for preparing a K-type polarizer Duane D. Fansler, Todd D. Jones, Babu N. Gaddam, Steven M. Heilmann, John J. Cael 2004-10-26