Inventor

Charles P. Bryant

Inventor

Euclid, OH, US

Overview

26→

Patents

1976–2005

Patent span

Chemistry

Primary field (CPC C)

Patents· 26 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C10Mprimary

C10MLubricating compositions30%

C10NIndexing scheme associated with subclass c10m relating to lubricating compositions23%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds20%

C10LFuels not otherwise provided for15%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%

C10GCracking hydrocarbon oils4%

C07CAcyclic or carbocyclic compounds2%

C09KMaterials for miscellaneous applications, not provided for elsewhere2%

PatentTitleYear

6,881,780'Dispersant-viscosity improvers for lubricating oil compositions'2005 6,639,034'Dispersant-viscosity improvers for lubricating oil compositions'2003 6,331,603'Nitrogen containing acrylic copolymers'2001 6,294,628'Dispersant-viscosity improvers for lubricating oil compositions'2001 6,271,184'Viscosity improvers for lubricating oil-compositions'2001 6,124,249'Viscosity improvers for lubricating oil compositions'2000 5,969,068'Dispersant-viscosity improvers for lubricating oil compositions'1999 5,821,313'Dispersant-viscosity improvers for lubricating oil compositions'1998 5,595,680'Electrorheological fluids containing polyanilines'1997 5,470,498'Polymeric salts as dispersed particles in electrorheological fluids'1995 5,437,806'Electrorheological fluids containing polyanilines'1995 5,435,932'Electrorheological fluids containing eletronically conductive polymers'1995 5,336,423'Polymeric salts as dispersed particles in electrorheological fluids'1994 4,846,985'Antioxidant compositions'1989 4,604,221'Nitrogen-containing esters and lubricants containing them'1986 4,454,059'Nitrogenous dispersants, lubricants and concentrates containing said nitrogenous dispersants'1984 4,343,740'Hydroxylalkyl hydroxy-aromatic condensation products as fuel and lubricant additives'1982 4,285,824'Hydroxyalkyl hydroxy-aromatic condensation products as fuel and lubricant additives'1981 4,284,414'Mixed alkyl esters of interpolymers for use in crude oils'1981 4,273,891'Hydrocarbon-substituted methylol phenols'1981 4,205,960'Hydroxyalkyl hydroxy-aromatic condensation products as fuel and lubricant additives'1980 4,186,139'Hydroxyalkyl hydroxy-aromatic condensation products as fuel and lubricant additives'1980 4,163,730'Hydroxyalkyl hydroxy-aromatic condensation products as lubricant additives'1979 4,108,784'Hydroxyalkyl hydroxy-aromatic condensation products as fuel and lubricant additives'1978 4,053,428'Hydrocarbon-substituted methylol phenols'1977 3,980,569'Dispersants and process for their preparation'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2005Patents assigned to LUBRIZOL CORP (26)· patent assignee history

1976–2005Based in Euclid, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LUBRIZOL CORP	26	1976–2005

Locations

Location	Patents	Span
Euclid, OH, US	26	1976–2005