Patents by Inventor David J. Martella
David J. Martella has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9518244Abstract: A lubricant composition is disclosed. The lubricant composition is made up of (a) an API Group III base stock; (b) one or more semi-crystalline viscosity modifier; and (c) one or more LOFIs having a side-chain distribution which satisfies the following requirements: (1) the distribution contains side chains ranging from C8 to C18 with an average carbon number ranging from 12.4 to 14.4; (2) the side chain distribution is bi-modal with a lower portion of the bi-modal distribution made up primarily of C12 and an upper portion of the distribution made up primarily of C16, C18 or combinations thereof; (3) the total mole % of the upper portion of the distribution must be less than that of the lower portion of the distribution; and (4) the amount of C12 on the side chain must be at least 40 mole % of the total side chain distribution.Type: GrantFiled: July 9, 2013Date of Patent: December 13, 2016Assignee: INFINEUM INTERNATIONAL LIMITEDInventors: Ricardo A. Bloch, Doyle H. Boese, David J. Martella
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Publication number: 20150018259Abstract: A lubricant composition is disclosed. The lubricant composition is made up of (a) an API Group III base stock; (b) one or more semi-crystalline viscosity modifier; and (c) one or more LOFIs having a side-chain distribution which satisfies the following requirements: (1) the distribution contains side chains ranging from C8 to C18 with an average carbon number ranging from 12.4 to 14.4; (2) the side chain distribution is bi-modal with a lower portion of the bi-modal distribution made up primarily of C12 and an upper portion of the distribution made up primarily of C16, C18 or combinations thereof; (3) the total mole % of the upper portion of the distribution must be less than that of the lower portion of the distribution; and (4) the amount of C12 on the side chain must be at least 40 mole % of the total side chain distribution.Type: ApplicationFiled: July 9, 2013Publication date: January 15, 2015Inventors: Ricardo A. Bloch, Doyle H. Boese, David J. Martella
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Publication number: 20100160196Abstract: A copolymer which can be used in power transmission fluids to provide improved viscometric properties is disclosed. The copolymer includes a mixture of alcohols having side chains with an average number of carbons ranging from greater than 8 to less than 12 defined by the following formula: C n = ? i = j i = z ? X i ? Cn i ? i = j i = z ? X i where Xi is the mole fraction of alcohol (i); Cni represents the number of carbon atoms in alcohol (i); j is the lowest number of carbons in an alcohol in the copolymer and must be at least 6; and z is the highest number of carbons in an alcohol.Type: ApplicationFiled: December 23, 2008Publication date: June 24, 2010Inventors: Dean B. Clarke, Carl Waterson, Ricardo A. Bloch, David J. Martella
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Publication number: 20090143263Abstract: A lubricant composition is disclosed. The lubricant composition is made up of (a) an API Group III base stock; (b) one or more semi-crystalline viscosity modifier; and (c) one or more LOFIs having a side-chain distribution which satisfies the following requirements: (1) the distribution contains side chains ranging from C8 to C18 with an average carbon number ranging from 12.4 to 14.4; (2) the side chain distribution is bi-modal with a lower portion of the bi-modal distribution made up primarily of C12 and an upper portion of the distribution made up primarily of C16, C18 or combinations thereof (3) the total mole % of the upper portion of the distribution must be less than that of the lower portion of the distribution; and (4) the amount of C12 on the side chain must be at least 40 mole % of the total side chain distribution.Type: ApplicationFiled: December 3, 2007Publication date: June 4, 2009Inventors: Ricardo A. Bloch, Doyle H. Boese, David J. Martella
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Patent number: 7300910Abstract: Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer.Type: GrantFiled: April 26, 2004Date of Patent: November 27, 2007Assignee: Infineum International LimitedInventors: Antonio Gutierrez, Ricardo A. Bloch, Nancy Z. Diggs, Fredrick W. Girshick, David J. Martella, Mark G. Stevens, Jacob Emert
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Patent number: 6750183Abstract: Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer.Type: GrantFiled: December 22, 2000Date of Patent: June 15, 2004Assignee: Infineum International Ltd.Inventors: Antonio Gutierrez, Ricardo A. Bloch, Nancy Z. Diggs, Fredrick W. Girschick, David J. Martella, Mark G. Stevens, Jacob Emert
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Patent number: 6679987Abstract: The invention relates to processes for treating acidic crudes or fractions thereof to reduce or eliminate their acidity and corrosivity by addition of suitable amounts of Group IA or Group IIA oxides, hydroxides and hydrates and Group IIA metal naphthenate salts. The process has the additional benefits of reducing materials handling problems associated with treating acidic crude oils using liquid solvents and in reducing emulsion formation.Type: GrantFiled: November 2, 1999Date of Patent: January 20, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Saul Charles Blum, Guido Sartori, David William Savage, Martin Leo Gorbaty, Bruce Henry Ballinger, Michael Paul Anderson, Trikur Anantharaman Ramanarayanan, David J. Martella
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Patent number: 6583247Abstract: Process for the copolymerization of free radical polymerizable comonomers such as vinyl acetate with an unsaturated diester such as diakyl fumarate which is carried out in the presence of water to produce copolymers such as fumarate vinyl acetate copolymers useful as lubricating oil and fuel oil additives, for example, as wax crystal modifiers and flow improvers.Type: GrantFiled: March 16, 1999Date of Patent: June 24, 2003Assignee: Infineum International Ltd.Inventors: Ariel Alvarino, Ricardo A. Bloch, David J. Martella, John V. Redpath, James M. Gardiner, Steven W. McKeown, Arunas T. Lapinas
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Patent number: 6475963Abstract: Compositions for improving at least the low temperature flow properties of high viscosity index, high saturates, low sulfur lubricating oils (also known as American Petroleum Institute Group II and Group III oils). The compositions comprise a mixture of lubricating oil flow improvers (LOFIs) that are specified first and second component copolymers of unsaturated dicarboxy esters, including a first component which is a polymer or copolymer of a carboxylate containing pendent ester groups wherein the average side chain carbon number is between 11.0 and 12.4, such as dialkyl fumarate/vinyl acetate copolymer, and a second component which also is a polymer or copolymer such as dialkyl fumarate/vinyl acetate copolymer, but wherein the average side chain carbon number is between 12.7 and 15.0.Type: GrantFiled: May 1, 2001Date of Patent: November 5, 2002Assignee: Infineum International Ltd.Inventors: Ricardo A. Bloch, David J. Martella
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Publication number: 20020115575Abstract: Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer.Type: ApplicationFiled: December 22, 2000Publication date: August 22, 2002Inventors: Antonio Gutierrez, Ricardo A. Bloch, Nancy Z. Diggs, Fredrick W. Girschick, David J. Martella, Mark G. Stevens, Jacob Emert
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Patent number: 6054042Abstract: The invention relates to a process for treating naphthenic acid containing whole crudes or fraction thereof to reduce or eliminate their acidity by contacting the acidic whole crude or fractions thereof at a suitable temperature typically of less than 200.degree. C. with a neutralizing amount typically from 0.25:1 up to 10:1 of overbased detergent. The process has the additional benefits of reducing materials handling problems associated with emulsion formation in treated crudes.Type: GrantFiled: August 3, 1998Date of Patent: April 25, 2000Assignee: Exxon Research and Engineering Co.Inventors: Martin L. Gorbaty, David J. Martella, Guido Sartori, David William Savage, Bruce Henry Ballinger, Saul Charles Blum, Michael Paul Anderson, Trikur Anantharaman Ramanarayanan
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Patent number: 6022494Abstract: The invention relates to processes for treating acidic crudes of fractions thereof to reduce or eliminate their acidity and corrosivity by addition of suitable amounts of Group IA of Group IIA oxides, hydroxides and hydrates. The process has the additional benefits of reducing materials handling problems associated with treating acidic crude oils using liquid solvents and in reducing emulsion formation.Type: GrantFiled: September 15, 1998Date of Patent: February 8, 2000Assignee: Exxon Research and Engineering Co.Inventors: Guido Sartori, David William Savage, Martin Leo Gorbaty, Bruce Henry Ballinger, Saul Charles Blum, Michael Paul Anderson, Trikur Anantharaman Ramanarayanan, David J. Martella
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Patent number: 5939365Abstract: A lubricant which comprises: a mineral oil basestock which has been dewaxed via catalytic cracking and/or catalytic isomerization; an alkylene-alkylene copolymer; and a lubricating oil flow improver formed from the reaction product of: (a) an unsaturated carboxy ester formed via the esterification of an unsaturated carboxylic acid or its corresponding anhydride with a monohydric aliphatic alcohol having an average carbon number of between about 10 to 18, the unsaturated carboxy ester having the formula: ##STR1## wherein R' is selected from the group consisting of hydrogen and COOR and wherein R is a C.sub.6 to C.sub.22 alkyl group; and (b) a monomer selected from the group consisting of(i) a vinyl ester having the formula: ##STR2## wherein R.sub.1 comprises an alkyl group containing from 1 to 18 carbon atoms;(ii) an olefin having the formula ##STR3## wherein R.sub.1 and R.sub.2 can independently be hydrogen, an alkyl having from 1 to 28 carbon atoms, or a substituted aryl group, provided both R.sub.1 and R.Type: GrantFiled: December 20, 1996Date of Patent: August 17, 1999Assignee: Exxon Chemical Patents Inc.Inventors: John V. Redpath, Arunas T. Lapinas, David J. Martella, Albert Rossi, William M. Davis
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Patent number: 5595963Abstract: This invention provides synergistic combinations of dithioketals with hindered phenols, phosphite esters, or mixtures thereof. These combinations are useful antioxidants in lubricating oils.Type: GrantFiled: December 5, 1994Date of Patent: January 21, 1997Assignee: Exxon Chemical Patents Inc.Inventors: James S. Puckace, David J. Martella
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Patent number: 5503643Abstract: The fuel oil-substituted fullerene compositions of the invention are useful for improving the cold flow properties of fuels. Typically the substituted fullerenes have the general formula C.sub.Fn (GRy)x, where C.sub.Fn is a fullerene, n is the number of carbon atoms in the fullerene, x is an integer from 1 up to the maximum number of sites on the fullerene molecule available for adding substituent groups, G is a linking group that may be absent or present, and when present is an oxygen, sulfur, nitrogen, phenol, aniline, Mannich base or diazocarboxylate-derived group, y is an integer determined by the identity of G, and when y equals 1 R is a substituted or unsubstituted hydrocarbyl group and when y equals 2 at most one R may be hydrogen while the remainder are hydrocarbyl groups, and the R group may be the same or different, and wherein when x is greater than 1 the GRy may be the same or different and at most one R may be hydrogen.Type: GrantFiled: June 7, 1995Date of Patent: April 2, 1996Assignee: Exxon Research and Engineering CompanyInventors: George W. Schriver, Abhimanyu O. Patil, David J. Martella, Kenneth Lewtas
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Patent number: 5454961Abstract: The present invention relates to novel compositions that contain a base oil and certain substituted fullerenes effective to improve the cold flow properties of the base oil. Typically the substituted fullerenes have the general formula:C.sub.Fn (GR.sub.y).sub.xIn the formula C.sub.Type: GrantFiled: April 19, 1994Date of Patent: October 3, 1995Assignee: Exxon Research & Engineering Co.Inventors: George W. Schriver, Abhimanyu O. Patil, David J. Martella, Kenneth Lewtas
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Patent number: 5268524Abstract: Essentially linear alkyl aromatics wherein the alkyl is attached to the aromatic ring at the .beta.-position are produced by the process wherein a linear hydrocarbon selected from the group consisting of linear .alpha.-olefins, linear .alpha.-substituted alkyl halides or linear .alpha.-substituted alkyl alcohol or mixtures of such olefins, halides or alcohols are reacted with an aromatic compound in the presence of an aprotic-polar cosolvent.Type: GrantFiled: September 24, 1992Date of Patent: December 7, 1993Assignee: Exxon Chemical Patents Inc.Inventors: David J. Martella, John J. Jaruzelski, Frank J. Chen
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Patent number: 5262508Abstract: Additives for improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the alkylation of a phenol in the presence of a dipolar aprotic cosolvent to produce an essentially linear alkylated phenol which is condensated with a sulphurizing agent to produce the low temperature flow improver wherein:(a) the polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5;(b) in the alkylated phenol reactant the alkyl groups (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26; and(c) not more than about 10 mole percent of the alkyl groups on the alkylated phenol have less than 12 carbon atoms and not more than about 10 mole percent of the alkyl groups on the alkylated phenol have more than 26 carbon atoms.Type: GrantFiled: August 13, 1992Date of Patent: November 16, 1993Assignee: Exxon Chemical Patents Inc.Inventors: David J. Martella, John J. Jaruzelski, Frank J. Chen
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Patent number: 5236608Abstract: Additives for improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and sulfurizing agent, wherein:(a) the polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5;(b) in the alkylated phenol reactant the alkyl groups (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26; and(c) not more than about 10 mole percent of the alkyl groups on the alkylated phenol have less than 12 carbon atoms and not more than about 10 mole percent of the alkyl groups on the alkylated phenol have more than 26 carbon atoms. The additives may also be produced in a branched backbone form in which monomer reactants are compolymerized with certain tri- or tetrafunctional comonomers.Type: GrantFiled: August 2, 1990Date of Patent: August 17, 1993Assignee: Exxon Chemical Patents Inc.Inventors: David J. Martella, John J. Jaruzelski
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Patent number: 5118875Abstract: Additives of improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the alkylation of a phenol in the presence of a polar aprotic cosolvent to produce an essentially linear alkylated phenol which is condensed with an aldehyde to produce the low temperature flow improver wherein:(a) the polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5;(b) in the alkylated phenol reactant the alkyl groups (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26; and(c) not more than about 10 mole percent of the alkyl groups on the alkylated phenol have less than 12 carbon atoms and not more than about 10 mole percent of the alkyl groups on the alkylated phenol have more than 26 carbon atoms.Type: GrantFiled: October 10, 1990Date of Patent: June 2, 1992Assignee: Exxon Chemical Patents Inc.Inventors: David J. Martella, John J. Jaruzelski, Frank J. Chen