Inventor

Harvey J. Richards

Inventor

Columbus, OH, US

Overview

18→

Patents

1977–2005

Patent span

Chemistry

Primary field (CPC C)

Patents· 18 as inventor

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

C09Jprimary

C09JAdhesives19%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds16%

Y10TTechnical subjects covered by former us classification14%

C08LCompositions of macromolecular compounds11%

C07DHeterocyclic compounds8%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form5%

C07CAcyclic or carbocyclic compounds5%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

C01GCompounds containing metals not covered by subclasses c01d or c01f3%

PatentTitleYear

6,861,152'Pressure sensitive adhesives'2005 6,590,031'Pressure sensitive adhesives'2003 6,420,023'Plasticizer resistant latex emulsion pressure sensitive adhesive and its production'2002 6,342,122'UV post curable pressure sensitive adhesives for membrane switch applications and their Production'2002 5,098,505'Epoxy resin, thermoplastic polymer and hardener adhesive'1992 4,822,518'Convenient synthesis of polyamide polyol/urethane diol blends'1989 4,754,057'Conversion of polycarboxylic acids to polyols by reaction with bicyclic amide acetals'1988 4,726,868'Polyol/polyepoxide/polyurethane adhesive'1988 4,698,408'Sag resistant two-component urethane adhesives with improved thermal stability'1987 4,698,416'Reaction of bicyclic amide acetal with sulfur'1987 4,657,815'Surface modification of inorganic fillers by treatment with bicyclic amide acetals'1987 4,652,655'Bicyclic amide acetals are prepared from organic nitriles and dialkanol amines at below about 140.degree. C. and product is isolated by solvent extraction'1987 4,627,932'Bicyclic amide acetals as moisture scavengers'1986 4,613,660'Polyol/polyepoxide/polyurethane adhesive'1986 4,539,376'Cross-linking of maleic anhydride polymers with bicyclic amide acetals'1985 4,477,382'Preparation of carboxylic acid anhydrides'1984 4,205,048'Liquid-liquid extraction of Cu, Co, Ni from ammoniacal solutions with 7-ethyl-undeca-2,4-dione'1980 4,045,441'7-(Alpha-methyl-alpha-alkenyl)substituted 8-hydroxyquinolines and process for the preparation thereof'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1992Patents assigned to ASHLAND OIL INC (13)· patent assignee history

1977–2005Based in Columbus, OH, US· patent location history

1980Patents assigned to SHEREX CHEM (1)· patent assignee history

2002Patents assigned to ASHLAND CHEMICAL COMPANY (1)· patent assignee history

2002Patents assigned to ASHLAND CHEMICAL INC (1)· patent assignee history

2003–2005Patents assigned to ASHLAND INC (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ASHLAND OIL INC	13	1977–1992
ASHLAND INC	2	2003–2005
ASHLAND CHEMICAL COMPANY	1	2002
ASHLAND CHEMICAL INC	1	2002
SHEREX CHEM	1	1980

Locations

Location	Patents	Span
Columbus, OH, US	18	1977–2005