Inventor
Subhas K. Sikdar
Inventor
Cincinnati, OH, US
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation20%
C02FTreatment of water, waste water, sewage, or sludge14%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry11%
C01BNon-metallic elements11%
C08BPolysaccharides8%
C07CAcyclic or carbocyclic compounds6%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds6%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds5%
B82YSpecific uses or applications of nanostructures3%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals3%
PatentTitleYear
10,245,558Green synthesis nanocomposite membranes20199,375,684'Green synthesis nanocomposite membranes'20168,888,994'Method for deep desulphurization of hydrocarbon fuels'20148,518,263'Method for fabrication of elastomeric asymmetric membranes from hydrophobic polymers'20138,096,424'Method for fabrication of elastomeric asymmetric membranes from hydrophobic polymers'20128,029,662'Sorbent compositions and desulfurization method using the same'20117,858,061'Compositions and methods for removing mercury from mercury-containing fluids'20106,777,374'Process for photo-induced selective oxidation of organic chemicals to alcohols, ketones and aldehydes using flame deposited nano-structured photocatalyst'20046,544,418'Preparing and regenerating a composite polymer and silica-based membrane'20036,544,419'Method of preparing a composite polymer and silica-based membrane'20036,306,301'Silica-based membrane sorbent for heavy metal sequestration'20016,139,742'Membrane-based sorbent for heavy metal sequestration'20006,117,328'Adsorbent-filled membranes for pervaporation'20006,103,121'Membrane-based sorbent for heavy metal sequestration'20006,039,878'Recovery of volatile organic compounds from emulsion of volatile organic compounds in water by pervaporation'20005,104,478'Method for making single crystals'19925,066,403'Process for separating azeotropic or close-boiling mixtures by use of a composite membrane, the membrane, and its process of manufacture'19914,558,118'Two phase interfacial polycondensation polycarbonate process'19854,546,207'Process for preparing anhydrous salts of dihydroxyaromatic compounds'19854,515,936'Catalyzed interfacial polycondensation polycarbonate process'19854,469,561'Azeotropic recovery of BPA and phenol from aqueous effluent streams'19844,368,315'Catalyzed interfacial polycondensation polycarbonate process'19834,360,659'Non-catalyzed interfacial polycondensation polycarbonate process'19824,308,244'Process for producing fluorine compounds and amorphous silica'19814,298,586'Recovery of hydrofluoric acid from fluosilicic acid'19814,275,038'Process for treating loaded extractant from purification of phosphoric acid by extraction and recovering nutrients'19814,264,563'Preparation of calcium fluoride from fluosilicic acid solutions'19814,256,716'Process for treating loaded extractant from purification of phosphoric acid by extraction'19814,213,952'Recovery of hydrofluoric acid from fluosilicic acid with high pH hydrolysis'19804,213,951'Recovery of hydrofluoric acid from fluosilicic acid with high pH hydrolysis'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1981Patents assigned to OCCIDENTAL RES CORP (7)· patent assignee history
1980–1981Based in San Juan Capistrano, CA, US· patent location history
1982–1985Patents assigned to GEN ELECTRIC (6)· patent assignee history
1982–1985Based in Clifton Park, NY, US· patent location history
1985–1992Based in Boulder, CO, US· patent location history
2000–2019Patents assigned to US ENVIRONMENT (7)· patent assignee history
2000–2016Patents assigned to UNIV KENTUCKY RES FOUND (6)· patent assignee history
2000–2019Based in Cincinnati, OH, US· patent location history
2000–2010Based in Blue Ash, OH, US· patent location history
2012–2016Patents assigned to SIKDAR SUBHAS K (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| OCCIDENTAL RES CORP | 7 | 1980–1981 |
| US ENVIRONMENT | 7 | 2000–2019 |
| GEN ELECTRIC | 6 | 1982–1985 |
| UNIV KENTUCKY RES FOUND | 6 | 2000–2016 |
| SIKDAR SUBHAS Kself | 3 | 2012–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cincinnati, OH, US | 8 | 2000–2019 |
| Blue Ash, OH, US | 7 | 2000–2010 |
| Clifton Park, New York, US | 5 | 1982–1985 |
| San Juan Capistrano, California, US | 5 | 1980–1981 |
| Boulder, CO, US | 3 | 1985–1992 |