RK

Robert F. Kamrath

3M: 26 patents #455 of 11,543Top 4%
📍 Mahtomedi, MN: #15 of 255 inventorsTop 6%
🗺 Minnesota: #2,420 of 52,454 inventorsTop 5%
Overall (All Time): #153,585 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDate
11435616 Optical construction and display system incorporating same Encai Hao, Fei Lu, William Blake Kolb, Brian W. Ostlie, Adam D. Haag +10 more 2022-09-06
10649274 Optical construction and display system incorporating same Encai Hao, Fei Lu, William Blake Kolb, Brian W. Ostlie, Adam D. Haag +10 more 2020-05-12
10502869 Optical element with a porous low refractive index layer having a protection layer William D. Coggio, Ramesh C. Kumar, John A. Wheatley, Michael L. Steiner, William F. Edmonds +3 more 2019-12-10
10295724 Back-lit transmissive display having variable index light extraction layer David Scott Thompson, Kevin R. Schaffer, Zhaohui Yang, Encai Hao, Audrey A. Sherman +5 more 2019-05-21
9878954 Vacuum glazing pillars for insulated glass units Margaret M. Vogel-Martin, Martin B. Wolk, Michael Benton Free, Olester Benson, Jr., Evan L. Schwartz +3 more 2018-01-30
9776384 Inorganic multilayer lamination transfer films Martin B. Wolk, Michael Benton Free, Daniel J. Schmidt, Mark J. Pellerite, Stephen A. Johnson +2 more 2017-10-03
9731473 Articles with lamination transfer films having engineered voids Evan L. Schwartz, Justin P. Meyer, Olester Benson, Jr., Terry O. Collier, Michael Benton Free +4 more 2017-08-15
9586385 Inorganic multilayer lamination transfer films Martin B. Wolk, Michael Benton Free, Daniel J. Schmidt, Mark J. Pellerite, Stephen A. Johnson +2 more 2017-03-07
9588262 Optically diffuse low refractive index element William D. Coggio, Michael L. Steiner, William F. Edmonds, Lan H. Liu, Encai Hao 2017-03-07
9541701 Back-lit transmissive display having variable index light extraction layer David Scott Thompson, Kevin R. Schaffer, Zhaohui Yang, Encai Hao, Audrey A. Sherman +5 more 2017-01-10
9419250 Methods of forming transfer films Evan L. Schwartz, Justin P. Meyer, Olester Benson, Jr., Terry O. Collier, Michael Benton Free +4 more 2016-08-16
9328265 Nano-porous adhesive tie layer Encai Hao, Kurt C. Melancon, Audrey A. Sherman, William Blake Kolb, Maureen A. Kavanagh +2 more 2016-05-03
9310527 Antireflective film comprising large particle size fumed silica Encai Hao, Jun-Ying Zhang, Lan H. Liu, Ming Cheng, Jung-Sheng Wu +3 more 2016-04-12
9246134 Lamination transfer films for forming articles with engineered voids Evan L. Schwartz, Justin P. Meyer, Olester Benson, Jr., Terry O. Collier, Michael Benton Free +4 more 2016-01-26
8343622 Flexible high refractive index hardcoat Lan H. Liu, Encai Hao, Taun L. McKenzie, Marc D. Radcliffe, Richard J. Pokorny +2 more 2013-01-01
8202573 Self-assembling antireflective coating comprising surface modified high refractive index nanoparticles Richard J. Pokorny, Thomas P. Klun, Marc D. Radcliffe, Christopher B. Walker, Jr. 2012-06-19
7148882 Capacitor based force sensor Michael E. Hamerly, Billy L. Weaver 2006-12-12
6613862 Treatment of fibrous substrates to impart repellency, stain resistance, and soil resistance John C. Clark, John C. Newland, Malcolm B. Burleigh, Kevin R. Schaffer 2003-09-02
6537662 Soil-resistant spin finish compositions James E. Lockridge, Edward R. Hauser, Irvin F. Dunsmore, Chetan P. Jariwala, Nicole L. Franchina +1 more 2003-03-25
6197378 Treatment of fibrous substrates to impart repellency, stain resistance, and soil resistance John C. Clark, John C. Newland, Malcolm B. Burleigh, Kevin R. Schaffer 2001-03-06
6074436 Carpet treatment composition comprising polycarboxylate salts Shou-Lu G. Wang, Irvin F. Dunsmore, John C. H. Chang 2000-06-13
5756181 Repellent and soil resistant carpet treated with ammonium polycarboxylate salts Shou-Lu G. Wang, Irvin F. Dunsmore, John C. H. Chang 1998-05-26
5744201 Method for treating carpet using PH adjustment John C. H. Chang, Shou-Lu G. Wang, Irvin F. Dunsmore 1998-04-28
5738687 Method for treating carpets with polycarboxylate salts to enhance soil resistance and repellency John C. H. Chang, Shou-Lu G. Wang, Irvin F. Dunsmore 1998-04-14
5466770 Fluorine-efficient oil- and water-repellent compositions Frans A. Audenaert, Rudolf J. Dams 1995-11-14