Denis Billen — 12 Patents at Pfizer

Denis Billen has been granted 12 US patents while listed as an inventor at Pfizer. The first was granted in 2008 and the most recent in August 2025. Denis Billen ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Denis Billen in Dublin, MI, IE.

Patents per Year

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12391640	Process of making a crystalline EDG-2 receptor antagonist	Bênédicte Martin, Michelle O'Mahony	2025-08-19
9926327	Process for preparing 7H-pyrrolo[2,3-D]pyrimidine compounds	Timothy Lee Stuk, Valerie Sue Westrick, Vageesha Warnajith Liyana Gunawardana	2018-03-27	$145,260,000
9200003	Crystalline forms of 1-(5′-(5-(3,5-dichloro-4-fluorophenyl)-5-(trifluoro-methyl)-4,5-dihydroisoxazol-3-yl)-3′H-spiro[azetidine-3,1′-isobenzofuran]-1-yl)-2-(methylsulfonyl) ethanone	Matthew J. Birchmeier, Ronald J. VanderRoest	2015-12-01	$137,001,000
8466115	Spirocyclic isoxazoline derivatives as antiparasitic agents	Michael P. Curtis, Sanjay Menon, Valerie A. Vaillancourt, Nathan Anthony Logan Chubb, Sean David William Greenwood +1 more	2013-06-18	$19,821,000
8084486	Substituted arylpyrazoles	Nathan Anthony Logan Chubb, David Morris Gethin, Kim Thomas Hall, Lee Richard Roberts, Nigel Derek Arthur Walshe	2011-12-27	$324,840,000
7968584	Substituted arylpyrazoles	Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham M. Kyne	2011-06-28	$611,469,000
7960426	Substituted arylpyrazoles	Nathan Anthony Logan Chubb, David Morris Gethin, Kim Thomas Hall, Lee Richard Roberts, Nigel Derek Arthur Walshe	2011-06-14	$628,047,000
7902232	Substituted arylpyrazoles	Nathan Anthony Logan Chubb, David Morris Gethin, Kim Thomas Hall, Lee Richard Roberts, Nigel Derek Arthur Walshe	2011-03-08	$212,034,000
7645786	Substituted arylpyrazoles	Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham M. Kyne	2010-01-12	$563,746,000
7538134	Substituted arylpyrazoles	Jessica Boyle, Douglas James Critcher, David Morris Gethin, Kim Thomas Hall, Graham M. Kyne	2009-05-26	$352,738,000
7514464	Substituted arylpyrazoles	Nathan Anthony Logan Chubb, David Morris Gethin, Kim Thomas Hall, Lee Richard Roberts, Nigel Derek Arthur Walshe	2009-04-07	$299,194,000
7435753	Substituted arylpyrazoles	Nathan Anthony Logan Chubb, David Morris Gethin, Kim Thomas Hall, Lee Richard Roberts, Nigel Derek Arthur Walshe	2008-10-14	$154,550,000

Denis Billen — 12 Patents

Patents per Year

Issued Patents All Time

Patent Widget