Inventor · disambiguated record
Christopher John Helal
Also filed as: HELAL CHRISTOPHER J · HELAL CHRISTOPHER JOHN · HELAL Christopher
33 granted patents·15 pending applications·128 citations·filing 2002–2023
96Inventor score
Top patents by PatentIndex Score
48 records- 0193US7429665B2Heteroaromatic quinoline compoundsPFIZER·Filed 2006·Granted Sep 30, 2008·23 cites·9 claims
- 0290US9845301B21,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives and 1,1,1-trifluoro-4-hydroxybutan-2-yl carbamate derivatives as MAGL inhibitorsPFIZER·Filed 2016·Granted Dec 19, 2017·8 cites·9 claims
- 0390US8933221B2Hexahydropyrano[3,4-d][1,3]thiazin-2-amine compoundsBRODNEY MICHAEL AARON·Filed 2012·Granted Jan 13, 2015·15 cites·4 claims
- 0489US11472805B2Tricyclic compounds and their use as phosphodiesterase inhibitorsPFIZER·Filed 2016·Granted Oct 18, 2022·4 cites·24 claims
- 0589US8598155B2Imidazo[5,1-f][1,2,4]triazines for the treatment of neurological disordersHELAL CHRISTOPHER JOHN·Filed 2012·Granted Dec 3, 2013·27 cites·26 claims
- 0688US9598421B2Imidazopyridazine compoundsPFIZER·Filed 2015·Granted Mar 21, 2017·6 cites·24 claims
- 0783US10738063B26,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-2-carboxamide compoundsPFIZER·Filed 2019·Granted Aug 11, 2020·3 cites·16 claims
- 0883US10329308B21,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives as MAGL inhibitorsPFIZER·Filed 2018·Granted Jun 25, 2019·2 cites·23 claims
- 0983US8933224B2Triazine derivativesPFIZER·Filed 2014·Granted Jan 13, 2015·5 cites·24 claims
- 1082US10428034B21,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives and 1,1,1-trifluoro-4-hydroxybutan-2-yl carbamate derivatives as MAGL inhibitorsPFIZER·Filed 2017·Granted Oct 1, 2019·3 cites·18 claims
- 1179US10858373B2Heterocyclic spiro compounds as MAGL inhibitorsPFIZER·Filed 2019·Granted Dec 8, 2020·1 cites·17 claims
- 1279US7825254B2Heteroaromatic quinoline compoundsPFIZER·Filed 2008·Granted Nov 2, 2010·3 cites·6 claims
- 1379US7479559B2Benzyl(idene)-lactam derivativesPFIZER·Filed 2005·Granted Jan 20, 2009·6 cites·52 claims
- 1478US9296761B2Triazine derivativesPFIZER·Filed 2015·Granted Mar 29, 2016·2 cites·23 claims
- 1578US9145427B2Triazine derivativesPFIZER·Filed 2014·Granted Sep 29, 2015·3 cites·29 claims
- 1677US9200000B2Imidazo[5,1-f][1,2,4]triazines for the treatment of neurological disordersPFIZER·Filed 2013·Granted Dec 1, 2015·4 cites·14 claims
- 1776US12049465B2Tricyclic compounds and their use as phosphodiesterase inhibitorsPFIZER·Filed 2022·Granted Jul 30, 2024·0 cites·10 claims
- 1875US12398119B2Piperazine azaspiro derivativesPFIZER·Filed 2022·Granted Aug 26, 2025·0 cites·3 claims
- 1975US10323042B26,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-2-carboxamide compoundsPFIZER·Filed 2017·Granted Jun 18, 2019·1 cites·18 claims
- 2075US8618117B2Amino-heterocyclic compoundsCLAFFEY MICHELLE MARIE·Filed 2012·Granted Dec 31, 2013·3 cites·3 claims
- 2174US10077269B2Imidazopyridazine compoundsPFIZER·Filed 2017·Granted Sep 18, 2018·1 cites·7 claims
- 2274US8278295B2Amino-heterocyclic compoundsCLAFFEY MICHELLE M·Filed 2010·Granted Oct 2, 2012·3 cites·11 claims
- 2373US11161844B2Cyclic substituted imidazo[4,5-c]quinoline derivativesPFIZER·Filed 2018·Granted Nov 2, 2021·1 cites·18 claims
- 2473US2023146535A1Tricyclic compounds and their use as phosphodiesterase inhibitorsPFIZER·Filed 2022·Application pending·0 cites
- 2572US8829010B2Pyrazolo[3,4-d]pyrimidine compounds and their use as PDE2 inhibitors and/or CYP3A4 inhibitorsHELAL CHRISTOPHER JOHN·Filed 2012·Granted Sep 9, 2014·3 cites·20 claims
- 2671US9550795B2Hexahydropyrano[3,4-d][1,3]thiazin-2-amine compoundsBRODNEY MICHAEL AARON·Filed 2014·Granted Jan 24, 2017·1 cites·5 claims
- 2769US10669279B2Imidazopyridazine compoundsPFIZER·Filed 2019·Granted Jun 2, 2020·0 cites·22 claims
- 2866US10723711B21,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives and 1,1,1-trifluoro-4-hydroxybutan-2-yl carbamate derivatives as MAGL inhibitorsPFIZER·Filed 2019·Granted Jul 28, 2020·0 cites·18 claims
- 2963US10626125B21,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives as MAGL inhibitorsPFIZER·Filed 2019·Granted Apr 21, 2020·0 cites·23 claims
- 3060US2018346475A1Imidazopyridazine CompoundsPFIZER·Filed 2018·Application pending·0 cites
- 3160US2018200253A1Heteroaromatic Compounds and their Use as Dopamine D1 LigandsPFIZER·Filed 2018·Application pending·0 cites
- 3260US2025304577A1Tyk2 inhibitorsBIOGEN MA INC·Filed 2023·Application pending·0 cites
- 3359US2025129048A1Melanocortin 4 receptor antagonists and uses thereofPFIZER·Filed 2022·Application pending·0 cites
- 3457US2023340530A1Methods of Protecting RNAPFIZER·Filed 2021·Application pending·0 cites
- 3556US2018208608A1Heterocyclic spiro compounds as magl inhibitorsPFIZER·Filed 2018·Application pending·0 cites
- 3655US2014088081A1Amino-Heterocyclic CompoundsPFIZER·Filed 2013·Application pending·0 cites
- 3753US2011224231A1Novel Lactams as Beta Secretase InhibitorsPFIZER·Filed 2009·Application pending·0 cites
- 3852US11524954B2Piperazine azaspiro derivativesPFIZER·Filed 2019·Granted Dec 13, 2022·0 cites·30 claims
- 3948US11312713B2Imidazo[4,5-C]quinoline derivatives as LRRK2 inhibitorsPFIZER·Filed 2018·Granted Apr 26, 2022·0 cites·18 claims
- 4046US8012969B211C-labeled benzyl-lactam compounds and their use as imaging agentsGE HEALTHCARE LTD·Filed 2006·Granted Sep 6, 2011·0 cites·15 claims
- 4146US2007155779A1Bicyclic heteroaryl compounds as pde10 inhibitorsPFIZER·Filed 2007·Application pending·0 cites
- 4244US2005209297A1Pyrazole derivativesPFIZER·Filed 2005·Application pending·0 cites
- 4342US8487104B2KAT II inhibitorsDOUNAY AMY B·Filed 2011·Granted Jul 16, 2013·0 cites·16 claims
- 4442US2003083352A1Synthesis of imidazole intermediatesPFIZER·Filed 2002·Application pending·0 cites
- 4542US2005256112A1Combination of atypical antipsychotics and 5HT-1B receptor antagonistsPFIZER·Filed 2005·Application pending·0 cites
- 4642US2005282816A1Pyrazinylmethyl lactam derivativesPFIZER·Filed 2005·Application pending·0 cites
- 4737US2013150376A1Novel Sultam CompoundsBRODNEY MICHAEL AARON·Filed 2011·Application pending·0 cites
- 4835US10131669B2Pyrazolopyrimidine compoundsPFIZER·Filed 2015·Granted Nov 20, 2018·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →