Inventor
KRAMER DAVID C
US26 patents
⚠️ This page may combine multiple inventors who share the name “KRAMER DAVID C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHEVRON USA INC
9 patentsUS7282134B2Oct 16, 2007
Process for manufacturing lubricating base oil with high monocycloparaffins and low multicycloparaffins
CHEVRON USA INC60 citations98
US7083713B2Aug 1, 2006
Composition of lubricating base oil with high monocycloparaffins and low multicycloparaffins
CHEVRON USA INC70 citations98
US6086749AJul 11, 2000
Catalyst and method for hydroprocessing a hydrocarbon feed stream in a reactor containing two or more catalysts
CHEVRON USA INC113 citations97
US5733440AMar 31, 1998
Catalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed
CHEVRON USA INC26 citations92
US5599440AFeb 4, 1997
Catalyst method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed
CHEVRON USA INC18 citations92
US7195706B2Mar 27, 2007
Finished lubricating comprising lubricating base oil with high monocycloparaffins and low multicycloparaffins
CHEVRON USA INC44 citations91
US6187725B1Feb 13, 2001
Process for making an automatic transmission fluid composition
CHEVRON USA INC24 citations90
US6110879AAug 29, 2000
Automatic transmission fluid composition
CHEVRON USA INC9 citations71
US8051020B2Nov 1, 2011
Base oil properties expert system
CHEVRON USA INC0 citations35
CHEVRON RES & TECH
4 patentsUS5298152AMar 29, 1994
Process to prevent catalyst deactivation in activated slurry hydroprocessing
CHEVRON RES & TECH74 citations96
US5076908ADec 31, 1991
Method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed
CHEVRON RES & TECH72 citations95
US5294329AMar 15, 1994
Process to prevent catalyst deactivation in activated slurry hydroprocessing
CHEVRON RES & TECH24 citations92
US5302357AApr 12, 1994
Apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed
CHEVRON RES & TECH19 citations81
CHEVRON RES
4 patentsUS4615796AOct 7, 1986
Method for contacting solids-containing feeds in a layered bed reactor
CHEVRON RES69 citations96
US4988433AJan 29, 1991
Demetalation of hydrocarbonaceous feedstocks using monobasic carboxylic acids and salts thereof
CHEVRON RES50 citations92
US5593573AJan 14, 1997
Demetalation of hydrocarbonaceous feedstocks using sulfuric acid and salts thereof
CHEVRON RES11 citations74
US5409598AApr 25, 1995
Method of hydroprocessing
CHEVRON RES14 citations71
(unassigned)
2 patentsUS5472928ADec 5, 1995
Catalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed
73 citations95
US5498327AMar 12, 1996
Catalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed
12 citations71