Inventor · disambiguated record
Douglas G. Placek
Also filed as: PLACEK DOUGLAS G
16 granted patents·5 pending applications·230 citations·filing 1991–2023
93Inventor score
Files withFMC CORP8ROHMAX ADDITIVES GMBH5EVONIK ROHMAX ADDITIVES GMBH2PABU SERVICES INC2ZSCHIMMER & SCHWARZ INC2
Top patents by PatentIndex Score
21 records- 0192US5206404ATriaryl phosphate ester composition and process for its preparationFMC CORP·Filed 1992·Granted Apr 27, 1993·79 cites·12 claims
- 0284US7648950B2Use of a polyalkylmethacrylate polymerROHMAX ADDITIVES GMBH·Filed 2005·Granted Jan 19, 2010·8 cites·33 claims
- 0379US5560849ASynthetic ester lubricant having improved antiwear propertiesFMC CORP·Filed 1994·Granted Oct 1, 1996·30 cites·22 claims
- 0477US7981848B2Use of polyalkylmethacrylate polymerEVONIK ROHMAX ADDITIVES GMBH·Filed 2009·Granted Jul 19, 2011·3 cites·24 claims
- 0575US6204227B1Metal working lubricant compositionPABU SERVICES INC·Filed 1999·Granted Mar 20, 2001·31 cites·33 claims
- 0670US5630852AOrganophosphorus additives for improved fuel lubricityFMC CORP·Filed 1994·Granted May 20, 1997·20 cites·21 claims
- 0768US11795153B1Epoxide compounds, methods of preparations and uses thereofZSCHIMMER & SCHWARZ INC·Filed 2022·Granted Oct 24, 2023·0 cites·20 claims
- 0864US2025333391A1Epoxide compounds, methods of preparations and uses thereofZSCHIMMER & SCHWARZ INC·Filed 2023·Application pending·0 cites
- 0958US5417869ASurfactants and cutting oil formulations using these surfactants which resist microbial degradationMOBIL OIL CORP·Filed 1994·Granted May 23, 1995·15 cites·8 claims
- 1057US7470381B2Functional fluid and the use thereofROHMAX ADDITIVES GMBH·Filed 2003·Granted Dec 30, 2008·4 cites·24 claims
- 1154US6030543AAircraft hydraulic fluid basestocksGREAT LAKES CHEMICAL CORP·Filed 1993·Granted Feb 29, 2000·12 cites·14 claims
- 1254US5128067AFire resistant low temperature greaseFMC CORP·Filed 1991·Granted Jul 7, 1992·11 cites·10 claims
- 1354US2008313074A1Business model that brings new technology to market in a rapid, cost effective mannerROHMAX ADDITIVES GMBH·Filed 2007·Application pending·0 cites
- 1452US2011162723A1Hydraulic fluid composition that reduces hydraulic system noiseEVONIK ROHMAX ADDITIVES GMBH·Filed 2009·Application pending·0 cites
- 1545US6165950APhosphate lubricant compositions and metal forming usePABU SERVICES INC·Filed 1998·Granted Dec 26, 2000·10 cites·25 claims
- 1640US2007197410A1Energy efficiency in hydraulic systemsROHMAX ADDITIVES GMBH·Filed 2006·Application pending·0 cites
- 1738US2008302422A1Power output in hydraulic systemsROHMAX ADDITIVES GMBH·Filed 2007·Application pending·0 cites
- 1836US5490886AMethods for quenching metalFMC CORP·Filed 1994·Granted Feb 13, 1996·3 cites·11 claims
- 1933US5552067AThermally stabilizing organic functional fluids in the absence of oxygensFMC CORP·Filed 1994·Granted Sep 3, 1996·2 cites·8 claims
- 2032US5162137AMethod for bonding styrenic surfacesFMC CORP·Filed 1991·Granted Nov 10, 1992·2 cites·14 claims
- 2129US5205865AMethod and composition for bonding styrenic surfacesFMC CORP·Filed 1991·Granted Apr 27, 1993·0 cites·6 claims
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