Inventor
Russell J. MacDonald
Inventor
Wilmington, MA, US
Overview
Patents· 35 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry21%
C08JWorking-up16%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds13%
B01DSeparation9%
C02FTreatment of water, waste water, sewage, or sludge9%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%
A23CDairy products, e.g. milk, butter or cheese3%
C01BNon-metallic elements3%
PatentTitleYear
10,576,424Ion exchange polymers and a method for making ion exchange polymers202010,486,151Ion-exchange membrane with multi-layered support substrate201910,328,426Ion exchange compositions, methods for making and materials prepared therefrom201910,273,338Ion exchange membranes prepared from crosslinked ion exchange polymer compositions201910,221,289Ion exchange membranes containing inorganic particles20199,925,534'Ion exchange compositions, methods for making and materials prepared therefrom'20189,700,850'Ion exchange membranes containing inorganic particles'20179,527,757'Supercapacitor desalination cells, devices and methods'20169,156,933'Cation exchange materials prepared in aqueous media'20159,073,050'Ion exchange compositions, methods for making and materials prepared therefrom'20159,048,464'Vacuum chamber method to form polymer coatings on porous support'20158,658,241'Simultaneous polymerization of two vinyl monomer mixtures to opposite faces of a flat porous substrate'20148,138,291'Anion exchange polymers, methods for making and materials prepared therefrom'20127,968,663'Anion exchange polymers, methods for making and materials prepared therefrom'20117,662,267'Device and method for electrodialysis'20107,591,933'Spiral electrodeionization device with segregated ionic flows'20097,306,709'Spiral electrodeionization device with flow distribution profiling'20077,087,654'Ion exchange and electrochemical methods and devices employing one-step quaternized and polymerized anion selective polymers'20066,410,672'Ion exchange and electrochemical methods and devices employing one-step quaternized and polymerized anion selective polymers'20026,126,805'Electrodialysis including filled cell electrodialysis (electrodeionization)'20005,814,197'Electrodialysis including filled cell electrodialysis (electrodeionization)'19985,503,729'Electrodialysis including filled cell electrodialysis (electrodeionization)'19965,354,903'Polymers prepared from concentrated solutions of N\',N\'methylenebisacrylamide'19945,284,879'High ion exchange capacity polyelectrolytes having high crosslink densities and caustic stability'19945,264,125'Process for manufacturing continuous supported ion selective membranes using non-polymerizable high boiling point solvents'19935,203,982'Cation exchange membranes'19935,145,618'Process for manufacturing continuous supported ion selective membranes using non-polymerizable high boiling point solvents'19925,118,717'High ion exchange capacity polyelectrolytes having high crosslink densities and caustic stability'19925,045,171'Acid efficient membrane for use in electrodialysis for recovery of acid'19915,037,858'Anion selective polymers prepared from concentrated solutions of N,N\'-methylenebisacrylamide'19914,822,471'Acid efficient membrane for use in electrodialysis for recovery of acid'19894,617,321'Synthesis of highly cross-linked cation-exchange polymers from an aqueous solution'19864,374,720'Synthesis of water soluble cross-linkers and their use in the manufacture of anionic polymers'19834,310,631'Synthesis of water soluble cross-linkers and their use in the manufacture of anionic polymers'19824,275,227'Synthesis of water soluble cross-linkers and their use in the manufacture of anionic polymers'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–2010Patents assigned to IONICS (19)· patent assignee history
1981–1983Based in Woburn, MA, US· patent location history
1986–1994Based in Watertown, MA, US· patent location history
1994–2019Based in Wilmington, MA, US· patent location history
2011–2019Patents assigned to GEN ELECTRIC (10)· patent assignee history
2012–2016Patents assigned to MACDONALD RUSSELL JAMES (6)· patent assignee history
2014–2015Patents assigned to BARBER JOHN (2)· patent assignee history
2017–2020Based in Westborough, MA, US· patent location history
2019–2020Patents assigned to BL TECHNOLOGIES INC (5)· patent assignee history
2019Based in Burlington, MA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IONICS | 19 | 1981–2010 |
| GEN ELECTRIC | 10 | 2011–2019 |
| MACDONALD RUSSELL JAMESself | 6 | 2012–2016 |
| BL TECHNOLOGIES INC | 5 | 2019–2020 |
| BARBER JOHN | 2 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wilmington, Massachusetts, US | 17 | 1994–2019 |
| Watertown, Massachusetts, US | 9 | 1986–1994 |
| Westborough, Massachusetts, US | 3 | 2017–2020 |
| Woburn, Massachusetts, US | 3 | 1981–1983 |
| Burlington, Massachusetts, US | 2 | 2019 |