Inventor
Chandrashekhar P. Kelkar
Inventor
Bridgewater, NJ, US
Overview
Patents· 13 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 chemistry17%
C10GCracking hydrocarbon oils17%
C01BNon-metallic elements11%
C01FCompounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or of the rare-earth metals9%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds9%
B01DSeparation7%
C04BLime, magnesia7%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium7%
Y02ATechnologies for adaptation to climate change7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
10,828,614Cyclic metal deactivation unit design for FCC catalyst deactivation202010,066,170Rare earth-containing attrition resistant vanadium trap for catalytic cracking catalyst20189,637,688'Rare earth-containing attrition resistant vanadium trap for catalytic cracking catalyst'20179,029,291'Rare earth-containing attrition resistant vanadium trap for catalytic cracking catalyst'20158,940,652'Phosphorus modified cracking catalysts with enhanced activity and hydrothermal stability'20157,045,485'NOx reduction composition for use in FCC processes'20066,852,298'NOx reduction composition for use in FCC processes'20056,800,586'NOx reduction composition for use in FCC processes'20045,877,354'Process for making isophorone with improved color and color stability'19995,814,291'Simplified synthesis of anion intercalated hydrotalcites'19985,518,704'Nickel and cobalt containing hydrotalcite-like materials having a sheet-like morphology and process for production thereof'19965,507,980'Basic inorganic binders'19965,399,329'Hydrotalcite-like materials having a sheet-like morphology and process for production thereof'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–1999Patents assigned to ARISTECH CHEMICAL CORP (5)· patent assignee history
1995–1998Based in Allegheny County, PA, US· patent location history
1996–1999Based in Plum Boro, PA, US· patent location history
2004–2006Patents assigned to ENGELHARD CORP (3)· patent assignee history
2004–2018Based in Bridgewater, NJ, US· patent location history
2015–2020Patents assigned to BASF CORP (5)· patent assignee history
2015Patents assigned to FU QI (2)· patent assignee history
2015Patents assigned to BABBITT WALTER (1)· patent assignee history
2020Based in Florham Park, NJ, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ARISTECH CHEMICAL CORP | 5 | 1995–1999 |
| BASF CORP | 5 | 2015–2020 |
| ENGELHARD CORP | 3 | 2004–2006 |
| FU QI | 2 | 2015 |
| BABBITT WALTER | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bridgewater, New Jersey, US | 7 | 2004–2018 |
| Plum Boro, Pennsylvania, US | 3 | 1996–1999 |
| Allegheny County, Pennsylvania, US | 2 | 1995–1998 |
| Florham Park, New Jersey, US | 1 | 2020 |