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USPTO Patent Rankings Data through Dec 31, 2025
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Christopher John Helal — 33 Patents

Pfizer: 32 patents #54 of 5,153Top 2%
GE: 1 patents #19,940 of 36,430Top 55%
Mystic, CT: #8 of 230 inventorsTop 4%
Connecticut: #972 of 34,797 inventorsTop 3%
Overall (All Time): #105,480 of 4,157,543Top 3%
33 Patents All Time
Christopher John Helal has been granted 33 US patents while listed as an inventor at Pfizer. The first was granted in 2008 and the most recent in August 2025. Christopher John Helal ranks #105,480 of 4,157,543 US inventors in our database (top 2.5%). Patent records list Christopher John Helal in Mystic, CT, US.

Issued Patents All Time

Showing 1–25 of 33 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12398119 Piperazine azaspiro derivatives Lei Zhang, Erik Alphie LaChapelle, Christopher Ryan Butler, Natasha Mariam Kablaoui, Michael Aaron Brodney +3 more 2025-08-26
12049465 Tricyclic compounds and their use as phosphodiesterase inhibitors Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Simone Sciabola, Erik Alphie LaChapelle +2 more 2024-07-30 $542,147,000
11524954 Piperazine azaspiro derivatives Lei Zhang, Erik Alphie LaChapelle, Christopher Ryan Butler, Natasha Mariam Kablaoui, Michael Aaron Brodney +3 more 2022-12-13 $1,137,745,000
11472805 Tricyclic compounds and their use as phosphodiesterase inhibitors Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Simone Sciabola, Erik Alphie LaChapelle +2 more 2022-10-18 $393,425,000
11312713 Imidazo[4,5-C]quinoline derivatives as LRRK2 inhibitors Michael Aaron Brodney, Thomas Allen Chappie, Jinshan Chen, Jotham Wadsworth Coe, Karen Coffman +14 more 2022-04-26 $777,515,000
11161844 Cyclic substituted imidazo[4,5-c]quinoline derivatives Thomas Allen Chappie, Paul Galatsis, Michelle Renee Garnsey, Jaclyn Louise Henderson, Bethany Lyn Kormos +5 more 2021-11-02 $709,757,000
10858373 Heterocyclic spiro compounds as MAGL inhibitors Michael Aaron Brodney, Christopher Ryan Butler, Laura Ann McAllister, Steven Victor O'Neil, Patrick Robert Verhoest 2020-12-08 $1,644,744,000
10738063 6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-2-carboxamide compounds Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Simone Sciabola, Erik Alphie LaChapelle +2 more 2020-08-11 $655,725,000
10723711 1,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives and 1,1,1-trifluoro-4-hydroxybutan-2-yl carbamate derivatives as MAGL inhibitors Christopher Ryan Butler, Laura Ann McAllister, Elizabeth Mary Beck, Michael Aaron Brodney, Adam Matthew Gilbert +6 more 2020-07-28 $482,302,000
10669279 Imidazopyridazine compounds Thomas Allen Chappie, Nandini Chaturbhai Patel, Matthew Merrill Hayward, Simone Sciabola, Erik Alphie LaChapelle +2 more 2020-06-02 $395,652,000
10626125 1,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives as MAGL inhibitors Michael Aaron Brodney, Christopher Ryan Butler, Laura Ann McAllister, Steven Victor O'Neil, Patrick Robert Verhoest 2020-04-21 $1,173,015,000
10428034 1,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives and 1,1,1-trifluoro-4-hydroxybutan-2-yl carbamate derivatives as MAGL inhibitors Christopher Ryan Butler, Laura Ann McAllister, Elizabeth Mary Beck, Michael Aaron Brodney, Adam Matthew Gilbert +6 more 2019-10-01 $298,967,000
10329308 1,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives as MAGL inhibitors Michael Aaron Brodney, Christopher Ryan Butler, Laura Ann McAllister, Steven Victor O'Neil, Patrick Robert Verhoest 2019-06-25 $317,230,000
10323042 6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-2-carboxamide compounds Thomas Allen Chappie, Nandini Chaturbhai Patel, Patrick Robert Verhoest, Simone Sciabola, Erik Alphie LaChapelle +2 more 2019-06-18 $923,940,000
10131669 Pyrazolopyrimidine compounds Thomas Allen Chappie, Patrick Robert Verhoest, Nandini Chaturbhai Patel, Matthew Merrill Hayward, Simone Sciabola +3 more 2018-11-20 $851,493,000
10077269 Imidazopyridazine compounds Thomas Allen Chappie, Nandini Chaturbhai Patel, Matthew Merrill Hayward, Simone Sciabola, Erik Alphie LaChapelle +2 more 2018-09-18 $396,134,000
9845301 1,1,1-trifluoro-3-hydroxypropan-2-yl carbamate derivatives and 1,1,1-trifluoro-4-hydroxybutan-2-yl carbamate derivatives as MAGL inhibitors Christopher Ryan Butler, Laura Ann McAllister, Elizabeth Mary Beck, Michael Aaron Brodney, Adam Matthew Gilbert +6 more 2017-12-19 $261,240,000
9598421 Imidazopyridazine compounds Thomas Allen Chappie, Patrick Robert Verhoest, Nandini Chaturbhai Patel, Matthew Merrill Hayward, Simone Sciabola +2 more 2017-03-21 $801,098,000
9550795 Hexahydropyrano[3,4-d][1,3]thiazin-2-amine compounds Michael Aaron Brodney, Christopher Ryan Butler, Brian Thomas O'Neill 2017-01-24 $366,815,000
9296761 Triazine derivatives Thomas Allen Chappie, Bethany Lyn Kormos, Jamison Bryce Tuttle, Patrick Robert Verhoest 2016-03-29 $310,571,000
9200000 Imidazo[5,1-f][1,2,4]triazines for the treatment of neurological disorders Thomas Allen Chappie, John Michael Humphrey, Patrick Robert Verhoest, Eddie Yang 2015-12-01 $346,715,000
9145427 Triazine derivatives Thomas Allen Chappie, Bethany Lyn Kormos, Jamison B. Tuttle, Patrick Robert Verhoest 2015-09-29 $193,164,000
8933221 Hexahydropyrano[3,4-d][1,3]thiazin-2-amine compounds Michael Aaron Brodney, Christopher Ryan Butler, Brian Thomas O'Neill 2015-01-13 $137,387,000
8933224 Triazine derivatives Thomas Allen Chappie, Bethany Lyn Kormos, Jamison Bryce Tuttle, Patrick Robert Verhoest 2015-01-13 $137,387,000
8829010 Pyrazolo[3,4-d]pyrimidine compounds and their use as PDE2 inhibitors and/or CYP3A4 inhibitors Thomas Allen Chappie, John Michael Humphrey 2014-09-09 $296,433,000