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USPTO Patent Rankings Data through Dec 31, 2025
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Terence D. Spawn — 28 Patents

3M: 28 patents #398 of 11,543Top 4%
Stillwater, MN: #45 of 719 inventorsTop 7%
Minnesota: #2,190 of 52,454 inventorsTop 5%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
Terence D. Spawn has been granted 28 US patents while listed as an inventor at 3M. The first was granted in 1993 and the most recent in March 2018. Terence D. Spawn ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list Terence D. Spawn in Stillwater, MN, US.

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9908837 Method for preparing (meth)acrylates of biobased alcohols and polymers thereof Joshua L. Colby, Aaron E. Hutt, Jason D. Clapper, Tabitha A. Clem 2018-03-06 $27,700,000
9604902 Selective synthesis of 2-octyl acrylate by acid catalyzed esterification of 2-octanol and acrylic acid Joshua L. Colby, Tabitha A. Clem, Aaron E. Hutt, Wade T. Teply 2017-03-28 $28,541,000
9399724 Pressure-sensitive adhesives with (meth)acrylic-based elastomeric materials prepared using (2-isopropyl-5-methyl)hexyl (meth)acrylate Kevin M. Lewandowski, Jason D. Clapper 2016-07-26 $171,613,000
9302291 Systems and methods for processing vapor Christopher S. Lyons, Kent T. Engle, Steven R. Vanhoose, Joseph M. Pieper, Edward J. Anderson +1 more 2016-04-05 $45,601,000
9212119 Method of making alpha, omega-diiodoperfluoroalkanes Steven J. Martin, Luke T. Dressel, Aaron E. Hutt, Eric A. Schotz, Miguel A. Guerra +4 more 2015-12-15 $37,597,000
8541485 Process for making filled resins James M. Nelson, Matthew N. Archibald, Wendy L. Thompson, Jeremy A. Miller, Randy A. Larson 2013-09-24 $20,861,000
7999023 Process for making pressure sensitive adhesive hydrogels Vinod P. Menon, Jeffrey D. Cotton 2011-08-16 $20,450,000
7510741 Method of making multilayer cholesteric liquid crystal optical bodies Richard J. Pokorny, Marc D. Radcliffe, Steven D. Solomonson 2009-03-31 $26,856,000
7442421 Electroluminescent materials and methods of manufacture and use Yingbo Li, John P. Baetzold, Ralph R. Roberts, James G. Bentsen, John S. Staral 2008-10-28 $14,011,000
7241512 Electroluminescent materials and methods of manufacture and use Yingbo Li, John P. Baetzold, Ralph R. Roberts, James G. Bentsen, John S. Staral 2007-07-10 $55,733,000
7160586 Cholesteric liquid crystal copolymers and additives Marc D. Radcliffe, Richard J. Pokorny, Steven D. Solomonson 2007-01-09 $18,812,000
7153549 Cholesteric liquid crystal additives Marc D. Radcliffe, Richard J. Pokorny 2006-12-26 $21,625,000
7068344 Cholesteric liquid crystal optical bodies and methods of manufacture and use Richard J. Pokorny, Marc D. Radcliffe, Steven D. Solomonson 2006-06-27 $33,831,000
7029729 Cholesteric liquid crystal additives Marc D. Radcliffe, Richard J. Pokorny 2006-04-18 $22,471,000
6309561 Liquid crystal compounds having a chiral fluorinated terminal portion Masakazu Hasegawa, Michael P. Keyes, Marc D. Radcliffe, Patricia M. Savu, Daniel C. Snustad 2001-10-30 $37,727,000
5972241 Liquid crystal compounds having a chiral fluorinated terminal portion Gilbert C. Johnson, Marc D. Radcliffe, Patricia M. Savu, Daniel C. Snustad 1999-10-26 $36,148,000
5855812 Compounds and process for controlling cone tilt angle in mixtures of smectic liquid crystal compounds Marc D. Radcliffe, Patricia M. Savu, Daniel C. Snustad 1999-01-05 $18,538,000
5702637 Liquid crystal compounds having a chiral fluorinated terminal portion Gilbert C. Johnson, Marc D. Radcliffe, Patricia M. Savu, Daniel C. Snustad 1997-12-30 $14,645,000
5625062 Method of making soluble squaraine dyes Roger A. Mader, William D. Ramsden, Daniel E. Saddoris 1997-04-29 $16,132,000
5482650 Liquid crystal compounds having perfluoroether terminal portions Eugene P. Janulis, Gilbert C. Johnson, Marc D. Radcliffe, Patricia M. Savu, Daniel C. Snustad 1996-01-09 $8,785,000
5474705 Chiral liquid crystal compounds having a perfluoroether terminal portion Eugene P. Janulis, Gilbert C. Johnson, Marc D. Radcliffe, Patricia M. Savu, Daniel C. Snustad 1995-12-12 $8,795,000
5437812 Liquid crystal compounds having perfluoroether terminal portions Eugene P. Janulis, Gilbert C. Johnson, Patricia M. Savu, Marc D. Radcliffe 1995-08-01 $9,006,000
5399291 Liquid crystal compounds having a fluoroether terminal portion Eugene P. Janulis, Gilbert C. Johnson, Marc D. Radcliffe, Patricia M. Savu, Daniel C. Snustad 1995-03-21 $9,541,000
5384237 Quaternary-ammonium phenylsulfonylacetate thermal-dye-bleach agents Dian E. Stevenson, Mark P. Kirk, Sylvia A. Farnum, William C. Frank, Randall H. Helland +7 more 1995-01-24 $13,274,000
5340712 Antifoggants for photothermographic articles Susan H. Dunn, Mark P. Kirk, Roger A. Mader 1994-08-23 $9,996,000