Inventor
D. R. Nagaraj
Inventor
Stamford, CT, US
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B03Dprimary
B03DFlotation42%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds11%
C22BProduction and refining of metals6%
Y02PClimate change mitigation technologies in the production or processing of goods6%
B01DSeparation5%
C01BNon-metallic elements5%
C01GCompounds containing metals not covered by subclasses c01d or c01f5%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds5%
C07CAcyclic or carbocyclic compounds5%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties5%
PatentTitleYear
11,007,538Flotation reagents and flotation processes utilizing same202110,710,099Compositions and methods for selective separation of minerals from sulfide ores202010,478,829Collector compositions and methods of using same in mineral flotation processes201910,369,577Compositions and methods for selective separation of minerals from sulfide ores201910,130,956Flotation reagents and flotation processes utilizing same20189,302,272'Froth flotation processes'20169,302,273'Froth flotation processes'20169,302,274'Collector compositions and methods of using the same'20168,720,694'Flotation reagents and flotation processes utilizing same'20148,376,142'Dithiocarbamate collectors and their use in the beneficiation of mineral ore bodies'20136,390,301'Process for removing impurities from kaolin clays'20025,959,054'Polymeric sulfide mineral depressants'19995,756,622'Polymeric sulfide mineral depressants'19985,533,626'Method of depressing non-sulfide silicate gangue minerals'19965,531,330'Method of depressing non-sulfide silicate gangue minerals'19965,237,079'Collectors and processes for making and using same'19935,126,038'Process for improved precious metals recovery from ores with the use of alkylhydroxamate collectors'19925,019,246'Frothing procedure using polymeric sulfide mineral depressants'19914,966,938'Allyl thiourea polymer with surface-modifying agent'19904,902,765'Allyl thiourea polymers'19904,888,106'Method of using polymeric sulfide mineral depressants'19894,871,466'Novel collectors and processes for making and using same'19894,866,150'Polymeric sulfide mineral depressants'19894,720,339'Flotation beneficiation process for non-sulfide minerals'19884,661,278'Monothiophosphinates as acid, neutral, or mildly alkaline circuit sulfide collectors and process for using same'19874,595,493'Process for the flotation of base metal sulfide minerals in acid, neutral or mildly alkaline circuits'19864,587,013'Monothiophosphinates as acid, neutral, or mildly alkaline circuit sulfide collectors and process for using same'19864,556,482'Process for the flotation of base metal sulfide minerals in acid, neutral or mildly alkaline circuits'19854,341,626'Process for the flotation of sulfide minerals employing alkylaryl hydrocarbon compounds'19824,130,415'Copper flotation with anti-5-nonyl-2-hydroxybenxophenone oxime'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Based in New York, NY, US· patent location history
1982–1993Patents assigned to AMERICAN CYANAMID CO (14)· patent assignee history
1982–2020Based in Stamford, CT, US· patent location history
1989Based in Fairfield, CT, US· patent location history
1996–2021Patents assigned to CYTEC TECH CORP (11)· patent assignee history
2002–2020Patents assigned to CYTEC IND INC (4)· patent assignee history
2014Patents assigned to BHAMBHANI TARUN (1)· patent assignee history
2014Patents assigned to CHEN HAUNN-LIN TONY (1)· patent assignee history
2014–2021Based in Ridgefield, CT, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AMERICAN CYANAMID CO | 14 | 1982–1993 |
| CYTEC TECH CORP | 11 | 1996–2021 |
| CYTEC IND INC | 4 | 2002–2020 |
| BHAMBHANI TARUN | 1 | 2014 |
| CHEN HAUNN-LIN TONY | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Stamford, CT, US | 20 | 1982–2020 |
| Ridgefield, CT, US | 8 | 2014–2021 |
| Fairfield, CT, US | 1 | 1989 |
| New York, New York, US | 1 | 1978 |