Home › Inventors › Robert E. Hefner, Jr.

RJ

Robert E. Hefner, Jr. — 222 Patents

EAE.I. Du Pont De Nemours And: 179 patents #1 of 12,129Top 1%

Dow Global Technologies: 36 patents #35 of 4,534Top 1%

BIBlue Cube Ip: 7 patents #4 of 136Top 3%

RMRohm And Haas Electronic Materials: 2 patents #264 of 562Top 50%

Rohm And Haas: 1 patents #1,282 of 2,359Top 55%

Rosharon, TX: #1 of 112 inventorsTop 1%

Texas: #76 of 125,132 inventorsTop 1%

Overall (All Time): #2,685 of 4,157,543Top 1%

222 Patents All Time

Robert E. Hefner, Jr. has been granted 222 US patents. The first was granted in 1980 and the most recent in September 2024. Robert E. Hefner, Jr. ranks #2,685 of 4,157,543 US inventors in our database (top 0.06%). Patent records list Robert E. Hefner, Jr. in Rosharon, TX, US.

Patents per Year

Issued Patents All Time

Showing 1–25 of 222 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12091377	Method for converting monoisocyanates to ureas	Helge Braun, Armenio Costa, Brian Cramm	2024-09-17
12071394	Method for removing monoisocyanates from organic solution	Helge Braun, Armenio Costa, Brian Cramm	2024-08-27
12030836	Phenyl isocyanate conversion process	Helge Braun, Armenio Costa, Brian Cramm	2024-07-09
11111431	Method for reducing the permeability of a subterranean formation to aqueous-based fluids	Stephen M. Hoyles, Sayeed Abbas, Shawn J. Maynard, Cesar E. Meza	2021-09-07
10876032	Method for recovering hydrocarbon fluids from a subterranean reservoir using alpha-glycol containing sulfonated epoxy resin compound	Stephen M. Hoyles	2020-12-29
10604590	Di- or tristyrylphenol monogycidyl ether adduct of maltodextrin	David J. Brennan, Gregoire Cardoen, Jonathan DeRocher, Antony K. Van Dyk, Tianlan Zhang	2020-03-31
10590239	Polymer including Troger'S base and isatin moieties and having intrinsic microporosity	Ian A. Tomlinson, Brian Cramm	2020-03-17
10472467	Polymers having intrinsic microporosity including sub-units with troger's base and spirobisindane moieties	—	2019-11-12
10414854	Epoxy resin compositions	Daryoosh Beigzadeh, David J. Couling, Robert W. Coyle, David Carr	2019-09-17
10414866	Troger's base polymers having intrinsic microporosity	Ian A. Tomlinson, Brian Cramm	2019-09-17
10239990	Isatin copolymers having intrinsic microporosity	Brian Cramm	2019-03-26
10189948	Isatin copolymers having intrinsic microporosity	Xiaolian Hu, Zhe Du	2019-01-29
9920168	Polymers of intrinsic microporosity	Brian Cramm, Ian A. Tomlinson, Lauren M. Huffman, Abhishek Roy	2018-03-20
9656936	Preparation and use of cyclododecatriene trialdehyde and related compounds	Erich J. Molitor	2017-05-23	$24,224,000
9598339	Preparation and use of cyclododecatriene trialdehyde and related compounds	Erich J. Molitor	2017-03-21	$17,345,000
9487615	Polycyanates of cyclododecane polyphenols and thermosets thereof	Erich J. Molitor	2016-11-08	$27,531,000
9487617	Preparation and uses of epoxy resins of cyclododecane polyphenols	Erich J. Molitor	2016-11-08	$27,531,000
9464224	Transformative wavelength conversion medium	Kishori Deshpande, Peter Trefonas, III, Maurice J. Marks, Jong Keun Park, Jieqian Zhang	2016-10-11
9382472	Transformative wavelength conversion medium	Kishori Deshpande, Maurice J. Marks, Peter Trefonas, III, Jong Keun Park, Jieqian Zhang	2016-07-05
9371414	Epoxy resin adducts and thermosets thereof	—	2016-06-21
9340702	Coating compositions	Guillaume Metral, Bernd Hoevel, Joseph Gan, Michael J. Mullins	2016-05-17
9328193	Preparation and use of cyclododecatriene trialdehyde and related compounds	Erich J. Molitor	2016-05-03	$29,188,000
9284434	Epoxy resin compositions	—	2016-03-15
9255177	Hybrid epoxy resin adducts	—	2016-02-09
9169352	Aromatic dicyanate compounds with high aliphatic carbon content	Michael J. Mullins, Ulrich Herold, Mark B. Wilson	2015-10-27