Individual holder
SORKIN FELIX L
55 granted patents·1 pending application·1,407 citations·filing 1992–2015
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
56 records- 0198US8087204B1Sealing cap for intermediate anchor systemSORKIN FELIX L·Filed 2008·Granted Jan 3, 2012·51 cites·17 claims
- 0298US8069624B1Pocketformer assembly for a post-tension anchor systemSORKIN FELIX L·Filed 2007·Granted Dec 6, 2011·54 cites·8 claims
- 0398US7950196B1Sealing trumpet for a post-tension anchorage systemSORKIN FELIX L·Filed 2007·Granted May 31, 2011·39 cites·3 claims
- 0497US9097014B1Cartridge for retaining a sheathing of a tendon within an anchor assemblySORKIN FELIX L·Filed 2014·Granted Aug 4, 2015·40 cites·20 claims
- 0597US8065845B1Anchorage with tendon sheathing lock and sealSORKIN FELIX L·Filed 2008·Granted Nov 29, 2011·50 cites·14 claims
- 0697US7461491B1Intersectional reinforcing bar support having securing capSORKIN FELIX L·Filed 2005·Granted Dec 9, 2008·44 cites·11 claims
- 0796US8251344B1Pocketformer with flow channelSORKIN FELIX L·Filed 2008·Granted Aug 28, 2012·34 cites·13 claims
- 0896US7963078B1Compression cap sheathing lockSORKIN FELIX L·Filed 2008·Granted Jun 21, 2011·35 cites·13 claims
- 0996US7856774B1Sheathing-retaining wedge assembly for use with a post-tension anchorage systemSORKIN FELIX L·Filed 2007·Granted Dec 28, 2010·47 cites·9 claims
- 1096US7841061B1Method of forming a dead-end anchorage of a post-tension systemSORKIN FELIX L·Filed 2007·Granted Nov 30, 2010·44 cites·20 claims
- 1196US7823345B1Unitary sheathing wedgeSORKIN FELIX L·Filed 2007·Granted Nov 2, 2010·46 cites·7 claims
- 1296US7676997B1Tendon tensioning anchor system having polymeric encapsulation with reduced shrinkage effectsSORKIN FELIX L·Filed 2005·Granted Mar 16, 2010·42 cites·7 claims
- 1395US8015774B1Process and apparatus for forming a sheathing retaining anchorSORKIN FELIX L·Filed 2008·Granted Sep 13, 2011·40 cites·12 claims
- 1495USD578379SPaving chairSORKIN FELIX L·Filed 2008·Granted Oct 14, 2008·59 cites·1 claims
- 1594US7866009B1Wedges for sheathing lock systemSORKIN FELIX L·Filed 2008·Granted Jan 11, 2011·31 cites·16 claims
- 1693USD400670SDuctSORKIN FELIX L·Filed 1996·Granted Nov 3, 1998·44 cites·1 claims
- 1792US7845136B1Expansion-resistive construction chair for use with tilt-wall constructionSORKIN FELIX L·Filed 2007·Granted Dec 7, 2010·21 cites·16 claims
- 1892US7810298B1Paving riser assembly for supporting rebars in stacked and/or intersection relationshipSORKIN FELIX L·Filed 2007·Granted Oct 12, 2010·20 cites·4 claims
- 1992US7695021B1Gasketed coupler apparatus for use with concrete segmentsSORKIN FELIX L·Filed 2008·Granted Apr 13, 2010·21 cites·6 claims
- 2092US7506482B2Concrete reinforcing bar support with bar retainer membersSORKIN FELIX L·Filed 2006·Granted Mar 24, 2009·22 cites·7 claims
- 2192US7424792B1Positively retained cap for use on an encapsulated anchor of a post-tension anchor systemSORKIN FELIX L·Filed 2004·Granted Sep 16, 2008·49 cites·9 claims
- 2291US7793473B2Sheathing retaining capSORKIN FELIX L·Filed 2008·Granted Sep 14, 2010·22 cites·19 claims
- 2391USD578870SGrade chairSORKIN FELIX L·Filed 2008·Granted Oct 21, 2008·43 cites·1 claims
- 2490US8398123B1Duct coupling systemSORKIN FELIX L·Filed 2010·Granted Mar 19, 2013·17 cites·2 claims
- 2590US7950197B1Shrinkage-preventing apparatus for the sheathing of a tendonSORKIN FELIX L·Filed 2007·Granted May 31, 2011·21 cites·7 claims
- 2690US7841140B1Apparatus for preventing shrinkage of a sheathing over a tendonSORKIN FELIX L·Filed 2007·Granted Nov 30, 2010·20 cites·8 claims
- 2789US7870703B1Upper beam slab bolster for use in constructionSORKIN FELIX L·Filed 2009·Granted Jan 18, 2011·14 cites·16 claims
- 2889US7797894B1Apparatus and method for preventing shrinkage of a sheathing over a tendonSORKIN FELIX L·Filed 2007·Granted Sep 21, 2010·15 cites·9 claims
- 2989USD388312SConstruction chairSORKIN FELIX L·Filed 1996·Granted Dec 30, 1997·36 cites·1 claims
- 3088US9423059B1Duct coupler for segmental constructionSORKIN FELIX L·Filed 2009·Granted Aug 23, 2016·18 cites·11 claims
- 3188US7797895B1Shrinkage-preventing device for the sheathing of a tendonSORKIN FELIX L·Filed 2007·Granted Sep 21, 2010·18 cites·15 claims
- 3287US7669381B1Intersectional reinforcing bar supportSORKIN FELIX L·Filed 2007·Granted Mar 2, 2010·13 cites·16 claims
- 3387US7322158B1Intersectional reinforcing bar support with C-shaped clampsSORKIN FELIX L·Filed 2003·Granted Jan 29, 2008·36 cites·2 claims
- 3486US8640292B1Deviator system for use in post-tension segmental concrete constructionSORKIN FELIX L·Filed 2012·Granted Feb 4, 2014·11 cites·7 claims
- 3586US7686347B1Couplers for use with ducts of concrete segmental constructionSORKIN FELIX L·Filed 2007·Granted Mar 30, 2010·16 cites·13 claims
- 3684US7237367B1Construction chair for use with tilt wall constructionSORKIN FELIX L·Filed 2003·Granted Jul 3, 2007·30 cites·12 claims
- 3782USD595117STilt wall chairSORKIN FELIX L·Filed 2008·Granted Jun 30, 2009·27 cites·1 claims
- 3881US9803788B1Press-on duct coupler assemblySORKIN FELIX L·Filed 2011·Granted Oct 31, 2017·6 cites·5 claims
- 3981US7621103B1Duct system for profiled post-tension constructionSORKIN FELIX L·Filed 2004·Granted Nov 24, 2009·26 cites·14 claims
- 4080US9121177B1Upper beam slab bolster for use in constructionSORKIN FELIX L·Filed 2009·Granted Sep 1, 2015·6 cites·10 claims
- 4179US7284354B1Upper beam slab bolster with extruded platesSORKIN FELIX L·Filed 2005·Granted Oct 23, 2007·6 cites·13 claims
- 4279US7273238B1Duct coupler apparatus with compressible sealsSORKIN FELIX L·Filed 2004·Granted Sep 25, 2007·23 cites·8 claims
- 4378USD615219SPocketformerSORKIN FELIX L·Filed 2008·Granted May 4, 2010·22 cites·1 claims
- 4477US5440842ASealed tendon-tensioning anchor systemSORKIN FELIX L·Filed 1992·Granted Aug 15, 1995·47 cites·13 claims
- 4576US8016326B1Mandrel system for fixing an orientation of a duct in concrete segmental constructionSORKIN FELIX L·Filed 2007·Granted Sep 13, 2011·8 cites·5 claims
- 4674US7267375B1Duct coupler apparatusSORKIN FELIX L·Filed 2004·Granted Sep 11, 2007·30 cites·8 claims
- 4763US9829136B1Matchcast coupler ring for segmental constructionSORKIN FELIX L·Filed 2009·Granted Nov 28, 2017·2 cites·7 claims
- 4861US7373764B1Extruded upper beam slab bolster for use in constructionSORKIN FELIX L·Filed 2003·Granted May 20, 2008·5 cites·10 claims
- 4957US2015211665A1Duct coupler for use with ducts in a wet joint of segmental concrete constructionSORKIN FELIX L·Filed 2014·Application pending·0 cites
- 5055USD567634SIntersectional paving chairSORKIN FELIX L·Filed 2007·Granted Apr 29, 2008·9 cites·1 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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