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USPTO Patent Rankings Data through Dec 31, 2025
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Ilan Duvdevani — 54 Patents

ExxonMobil: 52 patents #122 of 10,161Top 2%
Leonia, NJ: #2 of 99 inventorsTop 3%
New Jersey: #790 of 69,400 inventorsTop 2%
Overall (All Time): #46,969 of 4,157,543Top 2%
54 Patents All Time
Ilan Duvdevani has been granted 54 US patents while listed as an inventor at ExxonMobil. The first was granted in 1981 and the most recent in February 2008. Ilan Duvdevani ranks #46,969 of 4,157,543 US inventors in our database (top 1.1%). Patent records list Ilan Duvdevani in Leonia, NJ, US.

Issued Patents All Time

Showing 1–25 of 54 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7328733 Inner tube compositions having improved heat resistance characteristics Donald S. Tracey, Hsien-Chang Wang 2008-02-12 $345,828,000
7226962 Halogenated isobutylene-based copolymers having enhanced viscosity and thermoplastic compositions thereof Andy H. Tsou, Hsien-Chang Wang, Kenneth O. McElrath, Michael K. Lyon, Mun Fu Tse 2007-06-05 $471,353,000
7019058 Halogenated elastomeric compositions having enhanced viscosity Hsien-Chang Wang, Andy H. Tsou, Michael K. Lyon 2006-03-28 $509,611,000
6966999 Oriented thermoplastic vulcanizate Andy H. Tsou, Hsien-Chang Wang 2005-11-22 $546,298,000
6956075 Halogenated elastomeric compositions having improved stability and green strength Hsien-Chang Wang, Connie R. Qian, Pawan K. Agarwal 2005-10-18 $1,366,348,000
6875813 Isobutylene-based elastomer blends Andy H. Tsou, Hsien-Chang Wang 2005-04-05 $269,447,000
6626219 Inner tube compositions having improved heat resistance characteristics Donald S. Tracey, Hsien-Chang Wang, Takashi Takeda, Shinichiro Yamashita, Arthur E. Parente +1 more 2003-09-30 $166,792,000
6552108 Rubber blends having improved stability and green strength Hsien-Chang Wang, Connie R. Qian, Pawan K. Agarwal 2003-04-22 $391,740,000
6326433 Isobutylene based elastomer blends having improved strength elasticity, and reduced permeability Hsien-Chang Wang, Sudhin Datta, Connie R. Qian 2001-12-04 $274,263,000
5698640 Low bromine isobutylene-co-4-bromomethylstyrene compositions for severe duty elastomer applications Neil F. Newman 1997-12-16 $78,843,000
5435821 Controlled release vegetation enhancement agents coated with sulfonated polymers, method of production and prcesses of use Evelyn N. Drake, Warren A. Thaler, Pacifico V. Manalastas 1995-07-25 $40,051,000
H1077 Interfacial viscosification of aqueous solutions utilizing interpolymer Dennis G. Peiffer, Robert D. Lundberg 1992-07-07
4970117 Coatings with neutralized carboxylated polymers Pacifico V. Manalastas, Evelyn N. Drake 1990-11-13 $56,271,000
H818 Elastomeric compositions (C-1911) Joseph Wagensommer, Pawan K. Agarwal 1990-09-04
4942189 Interfacial viscosification of aqueous solutions utilizing interpolymer complex Dennis G. Peiffer, Robert D. Lundberg 1990-07-17 $64,161,000
4935301 Coated glass fiber composites Hans J. Rerup, Evelyn N. Drake 1990-06-19 $45,994,000
4923517 Glass fiber reinforced cement compositions Hans J. Rerup, Evelyn N. Drake 1990-05-08 $36,097,000
4904722 Method for controlling viscosity of organic liquids and compositions thereof Robert D. Lundberg, Robert R. Phillips, Dennis G. Peiffer 1990-02-27 $26,313,000
4882405 Terpolymers of acrylamide, alkylacrylamide and betaine monomers Donald N. Schulz, Jan Bock, Enock Berluche 1989-11-21 $23,692,000
4880436 Method for controlling viscosity of organic liquid and compositions Kissho Kitano, Donald N. Schulz 1989-11-14 $47,279,000
4801498 Substrates coated with neutralized carboxylated polymers Pacifico V. Manalastas, Evelyn N. Drake 1989-01-31 $26,594,000
4788247 Terpolymers of acrylamide, alkyl polyetheroxyacrylate and betaine monomers Donald N. Schulz, Jan Bock, Jeff J. Kaladas 1988-11-29 $50,089,000
4742135 Terpolymers of acrylamide, alkylacrylamide and betaine monomers Donald N. Schulz, Jan Bock, Enock Berluche 1988-05-03 $106,751,000
4738997 Asphalt blends based on polymer complexes Robert D. Lundberg, Dennis G. Peiffer 1988-04-19 $46,360,000
4737534 Method for controlling viscosity of organic liquids and compositions thereof Robert D. Lundberg, Robert R. Phillips, Dennis G. Peiffer 1988-04-12 $61,369,000