Inventor · disambiguated record
Charles D. Kownacki
Also filed as: KOWNACKI CHARLES · KOWNACKI CHARLES D
28 granted patents·5 pending applications·974 citations·filing 1992–2023
97Inventor score
Top patents by PatentIndex Score
33 records- 0194US5238107ADisc storage container having a securing means central apertureKOWNACKI CHARLES D·Filed 1992·Granted Aug 24, 1993·83 cites·15 claims
- 0293US11123649B1Moov fidget toyKOWNACKI CHARLES D·Filed 2020·Granted Sep 21, 2021·4 cites·6 claims
- 0393US5302125ADental prosthetic implantKOWNACKI CHARLES D·Filed 1992·Granted Apr 12, 1994·221 cites·18 claims
- 0492US6632119B2Winding device and ornithopter utilizing sameMARVEL ENTPR INC·Filed 2001·Granted Oct 14, 2003·61 cites·14 claims
- 0591US5816812ADental implant fixtureOSTEOMED CORP·Filed 1994·Granted Oct 6, 1998·182 cites·8 claims
- 0690US10266303B1Light-weight structural panel constructionKOWNACKI CHARLES D·Filed 2016·Granted Apr 23, 2019·11 cites·4 claims
- 0786US8322103B1Faux brick with suspension systemKOWNACKI CHARLES D·Filed 2008·Granted Dec 4, 2012·22 cites·12 claims
- 0882US5988207ADecorative storage device for garden hoseEMSCO INC·Filed 1998·Granted Nov 23, 1999·32 cites·18 claims
- 0977US6347623B1Toy projectile launching assemblySPIN MASTER TOYS·Filed 2000·Granted Feb 19, 2002·43 cites·62 claims
- 1075US7162841B2Spring clip and method of window installationKOWNACKI CHARLES D·Filed 2004·Granted Jan 16, 2007·21 cites·5 claims
- 1175US6749797B2One-piece injection molded window frame and sashSBR INC·Filed 2002·Granted Jun 15, 2004·19 cites·7 claims
- 1272US8984820B1Geometrics window systemKOWNACKI CHARLES D·Filed 2012·Granted Mar 24, 2015·8 cites·29 claims
- 1371US6006517APneumatic engineSPIN MASTER TOYS LTD·Filed 1998·Granted Dec 28, 1999·29 cites·10 claims
- 1469US7178529B2Noctumal oral airway dilatorDENTAL APPLIANCE INVESTORS INC·Filed 2001·Granted Feb 20, 2007·47 cites·19 claims
- 1568US6921315B2Toy vehicle having an integral pump assemblySPIN MASTER LTD·Filed 2003·Granted Jul 26, 2005·12 cites·4 claims
- 1667US6260265B1Circuit board stiffenerPOWER DISTRIB PRODUCTS·Filed 2000·Granted Jul 17, 2001·17 cites·7 claims
- 1760US6079954AAir pumping station for pneumatic toy vehicleSPINMASTER TOYS LTD·Filed 1999·Granted Jun 27, 2000·21 cites·3 claims
- 1858US7415797B2Impact resistant tilt window assemblySIMONTON BUILDING PRODUCTS INC·Filed 2004·Granted Aug 26, 2008·15 cites·4 claims
- 1957US6122815ACircuit board stiffener and method of attachment to a circuit boardPOWER DISTRIBUTION PRODUCTS·Filed 1998·Granted Sep 26, 2000·23 cites·17 claims
- 2055USD410824SDecorative storage device for a garden hoseKOWNACKI CHARLES D·Filed 1998·Granted Jun 8, 1999·9 cites·1 claims
- 2155US5301441APneumatic bouncing bootKOWNACKI CHARLES D·Filed 1993·Granted Apr 12, 1994·38 cites·25 claims
- 2254US6230605B1Piston-to-cylinder seal for a pneumatic engineSPIN MASTER TOYS·Filed 2000·Granted May 15, 2001·6 cites·22 claims
- 2353US6085631APiston-to-cylinder seal for a pneumatic engineFiled 1999·Granted Jul 11, 2000·15 cites·1 claims
- 2451USD419205SCombined airplane and pumping stationSPIN MASTER TOYS LTD·Filed 1999·Granted Jan 18, 2000·8 cites·1 claims
- 2549US2007157455A1Fenestration product and method and apparatus for manufactureKOWNACKI CHARLES D·Filed 2006·Application pending·0 cites
- 2648US12235070B1Efficient high-velocity compressed-gas-powered gunNACHEFSKI WILLIAM S·Filed 2023·Granted Feb 25, 2025·0 cites·5 claims
- 2748US6048247AMain wing positioning and release system for a toy aircraftSPINMASTER TOYS LTD·Filed 1998·Granted Apr 11, 2000·14 cites·1 claims
- 2847US5956892ALawn and garden edging with watering capabilityEMSCO INC·Filed 1998·Granted Sep 28, 1999·13 cites·17 claims
- 2942US2002068502A1Water-powered toysFiled 2000·Application pending·0 cites
- 3041US2004226208A1One-piece injection molded window frame and sashFiled 2004·Application pending·0 cites
- 3139US2002002902A1Piston-to-cylinder seal for a pneumatic engineFiled 2001·Application pending·0 cites
- 3235US2003111359A1Pocket-held containerFiled 2001·Application pending·0 cites
- 3332US6404589B1Light-weight video cassettePRECISE PLASTICS·Filed 2000·Granted Jun 11, 2002·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →