Inventor · disambiguated record
Larry P. Koskan
Also filed as: KOSKAN LARRY P
32 granted patents·1 pending application·1,029 citations·filing 1976–2017
98Inventor score
Top patents by PatentIndex Score
33 records- 0196US5219952AProduction of high molecular weight polysuccinimide and high molecular weight polyaspartic acid from maleic anhydride and ammoniaDONLAR CORP·Filed 1992·Granted Jun 15, 1993·84 cites·10 claims
- 0296US5057597AProcess for the manufacture of anhydro polyamino acids and polyamino acidsKOSKAN LARRY P·Filed 1990·Granted Oct 15, 1991·113 cites·8 claims
- 0395US5296578AProduction of polysuccinimide and polyaspartic acid from maleic anhydride and ammoniaDONLAR CORP·Filed 1992·Granted Mar 22, 1994·68 cites·11 claims
- 0493US5284512APolyaspartic acid and its salts for dispersing suspended solidsDONLAR CORP·Filed 1993·Granted Feb 8, 1994·66 cites·17 claims
- 0593US5221733AManufacture of polyaspartic acidsDONLAR CORP·Filed 1991·Granted Jun 22, 1993·70 cites·2 claims
- 0691US5593947AMethod for more efficient uptake of plant growth nutrientsDONLAR CORP·Filed 1994·Granted Jan 14, 1997·63 cites·8 claims
- 0790US5350735AComposition and method for enhanced fertilizer uptake by plantsDONLAR CORP·Filed 1992·Granted Sep 27, 1994·49 cites·20 claims
- 0890US5152902APolyaspartic acid as a calcium carbonate and a calcium phosphate inhibitorDONLAR CORP·Filed 1991·Granted Oct 6, 1992·77 cites·13 claims
- 0989US5478919AAspartic acid copolymers and their preparationDONLAR CORP·Filed 1994·Granted Dec 26, 1995·41 cites·5 claims
- 1088US5116513APolyaspartic acid as a calcium sulfate and a barium sulfate inhibitorDONLAR CORP·Filed 1991·Granted May 26, 1992·64 cites·12 claims
- 1187US9605197B2System and method for inhibiting scale formation in oil wellsGLOBAL GREEN PRODUCTS LLC·Filed 2016·Granted Mar 28, 2017·4 cites·18 claims
- 1286US5612384ASuperabsorbing polymeric networksDONLAR CORP·Filed 1994·Granted Mar 18, 1997·44 cites·11 claims
- 1385US9382466B2Method for inhibiting scale formation in oil wellsKOSKAN LARRY P·Filed 2013·Granted Jul 5, 2016·7 cites·23 claims
- 1482US5861356AMethod and composition for enhanced plant productivity comprising fertilizer and cross-linked polyamino acidDONLAR CORP·Filed 1997·Granted Jan 19, 1999·39 cites·33 claims
- 1579US5373088AProduction of polyaspartic acid from maleic acid and ammoniaDONLAR CORP·Filed 1994·Granted Dec 13, 1994·24 cites·14 claims
- 1675US5783523AMethod and composition for enhanced hydroponic plant productivity with polyamino acidsDONLAR CORP·Filed 1997·Granted Jul 21, 1998·21 cites·36 claims
- 1773US5315010APolyaspartic acid manufactureDONLAR CORP·Filed 1993·Granted May 24, 1994·24 cites·2 claims
- 1872US5814582AMethod for enhanced plant productivityDONLAR CORP·Filed 1997·Granted Sep 29, 1998·24 cites·32 claims
- 1970US5373086APolyaspartic acid having more than 50% β form and less that 50% α formDONLAR CORP·Filed 1994·Granted Dec 13, 1994·27 cites·4 claims
- 2069US5391764APolyaspartic acid manufactureDONLAR CORP·Filed 1994·Granted Feb 21, 1995·14 cites·7 claims
- 2167US5854177AMethod for enhanced hydroponic plant productivity with polymeric acidsDONLAR CORP·Filed 1997·Granted Dec 29, 1998·19 cites·16 claims
- 2263US5552516ASoluble, crosslinked polyaspartatesDONLAR CORP·Filed 1994·Granted Sep 3, 1996·25 cites·26 claims
- 2358US9206062B2Methods to recover and reclaim hydrocarbons or hydrophobic substances in an aqueous environmentGLOBAL GREEN PRODUCTS LLC·Filed 2013·Granted Dec 8, 2015·0 cites·20 claims
- 2457US9914869B2System and method for inhibiting scale formation in oil wellsGLOBAL GREEN PRODUCTS LLC·Filed 2017·Granted Mar 13, 2018·0 cites·15 claims
- 2554US9957435B2Methods for inhibiting iron sulfide scale in oil wellsGLOBAL GREEN PRODUCTS LLC·Filed 2016·Granted May 1, 2018·0 cites·20 claims
- 2654US5607623AInhibition of carbon dioxide corrosion of metalsDONLAR CORP·Filed 1995·Granted Mar 4, 1997·18 cites·7 claims
- 2753US4749382AStable oil dispersible metal salt solutionsNALCO CHEMICAL CO·Filed 1984·Granted Jun 7, 1988·10 cites·7 claims
- 2852US8628669B2Methods to recover and reclaim hydrocarbons or hydrophobic substances in an aqueous environmentKOSKAN LARRY P·Filed 2011·Granted Jan 14, 2014·0 cites·17 claims
- 2952US5847013ASuperabsorbing polymeric networksDONLAR CORP·Filed 1997·Granted Dec 8, 1998·11 cites·5 claims
- 3050US4530701AProcess of manufacturing a co-fuel additive with combustion-modifying effectsNALCO CHEMICAL CO·Filed 1983·Granted Jul 23, 1985·9 cites·10 claims
- 3150US2013248186A1Method for inhibiting scale formation in oil wellsKOSKAN LARRY P·Filed 2013·Application pending·0 cites
- 3247USRE36234EAspartic acid copolymers and their preparationDONLAR CORP·Filed 1997·Granted Jun 22, 1999·8 cites·2 claims
- 3337US4100258ASodium aluminate to reduce flue gas corrosionNALCO CHEMICAL CO·Filed 1976·Granted Jul 11, 1978·6 cites·8 claims
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