Inventor

Larry P. Koskan

Inventor

Abbott Park, IL, US

Overview

32→

Patents

1978–2018

Patent span

Chemistry

Primary field (CPC C)

Patents· 32 as inventor

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

C08Gprimary

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds24%

C09KMaterials for miscellaneous applications, not provided for elsewhere12%

A01NPreservation of bodies of humans or animals or plants or parts thereof9%

C02FTreatment of water, waste water, sewage, or sludge9%

C05FOrganic fertilisers not covered by subclasses c05b, c05c, e.g. fertilisers from waste or refuse9%

C05GMixtures of fertilisers covered individually by different subclasses of class c059%

E21BEarth or rock drilling4%

A61LMethods or apparatus for sterilising materials or objects in general3%

C07CAcyclic or carbocyclic compounds3%

C08JWorking-up3%

PatentTitleYear

9,957,435Methods for inhibiting iron sulfide scale in oil wells2018 9,914,869'System and method for inhibiting scale formation in oil wells'2018 9,605,197'System and method for inhibiting scale formation in oil wells'2017 9,382,466'Method for inhibiting scale formation in oil wells'2016 9,206,062'Methods to recover and reclaim hydrocarbons or hydrophobic substances in an aqueous environment'2015 8,628,669'Methods to recover and reclaim hydrocarbons or hydrophobic substances in an aqueous environment'2014 RE036234'Aspartic acid copolymers and their preparation'1999 5,861,356'Method and composition for enhanced plant productivity comprising fertilizer and cross-linked polyamino acid'1999 5,854,177'Method for enhanced hydroponic plant productivity with polymeric acids'1998 5,847,013'Superabsorbing polymeric networks'1998 5,814,582'Method for enhanced plant productivity'1998 5,783,523'Method and composition for enhanced hydroponic plant productivity with polyamino acids'1998 5,612,384'Superabsorbing polymeric networks'1997 5,607,623'Inhibition of carbon dioxide corrosion of metals'1997 5,593,947'Method for more efficient uptake of plant growth nutrients'1997 5,552,516'Soluble, crosslinked polyaspartates'1996 5,478,919'Aspartic acid copolymers and their preparation'1995 5,391,764'Polyaspartic acid manufacture'1995 5,373,088'Production of polyaspartic acid from maleic acid and ammonia'1994 5,373,086'Polyaspartic acid having more than 50% .beta. form and less that 50% .alpha. form'1994 5,350,735'Composition and method for enhanced fertilizer uptake by plants'1994 5,315,010'Polyaspartic acid manufacture'1994 5,296,578'Production of polysuccinimide and polyaspartic acid from maleic anhydride and ammonia'1994 5,284,512'Polyaspartic acid and its salts for dispersing suspended solids'1994 5,221,733'Manufacture of polyaspartic acids'1993 5,219,952'Production of high molecular weight polysuccinimide and high molecular weight polyaspartic acid from maleic anhydride and ammonia'1993 5,152,902'Polyaspartic acid as a calcium carbonate and a calcium phosphate inhibitor'1992 5,116,513'Polyaspartic acid as a calcium sulfate and a barium sulfate inhibitor'1992 5,057,597'Process for the manufacture of anhydro polyamino acids and polyamino acids'1991 4,749,382'Stable oil dispersible metal salt solutions'1988 4,530,701'Process of manufacturing a co-fuel additive with combustion-modifying effects'1985 4,100,258'Sodium aluminate to reduce flue gas corrosion'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1988Patents assigned to NALCO CHEMICAL CO (3)· patent assignee history

1978–2018Based in Abbott Park, IL, US· patent location history

1991–2016Patents assigned to KOSKAN LARRY P (3)· patent assignee history

1992–1999Patents assigned to DONLAR CORP (22)· patent assignee history

2014–2018Patents assigned to GLOBAL GREEN PRODUCTS LLC (6)· patent assignee history

2014–2016Patents assigned to MEAH ABDUL R (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DONLAR CORP	22	1992–1999
GLOBAL GREEN PRODUCTS LLC	6	2014–2018
KOSKAN LARRY Pself	3	1991–2016
NALCO CHEMICAL CO	3	1978–1988
MEAH ABDUL R	2	2014–2016

Locations

Location	Patents	Span
Abbott Park, Illinois, US	32	1978–2018