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USPTO Patent Rankings Data through Dec 31, 2025
JC

John Cheng — 7 Patents

Basf Se: 5 patents #3,244 of 13,826Top 25%
Air Products And Chemicals: 2 patents #793 of 1,997Top 40%
Allentown, PA: #215 of 1,150 inventorsTop 20%
Pennsylvania: #11,887 of 74,527 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
John Cheng has been granted 7 US patents while listed as an inventor at Basf Se. The first was granted in 1984 and the most recent in February 2002. John Cheng ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list John Cheng in Allentown, PA, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6348525 Co-agglomeration of random vinyl substituted aromatic/conjugated diolefin polymer with sulfur to improve homogeneity of polymer/asphalt admixtures Koichi Takamura, Paul Velasco, Peter Blanpain, Heinz Plaumann, Richard Liu +2 more 2002-02-19 $313,000
6300392 Co-agglomeration of random vinyl substituted aromatic/conjugated diolefin polymer with sulfur to improve homogeneity of polymer/asphalt admixtures Koichi Takamura, Paul Velasco, Peter Blanpain, Heinz Plaumann, Richard Liu +2 more 2001-10-09 $325,000
6127461 Co-Agglomeration of random vinyl substituted aromatic/conjugated diolefin polymer with sulfur to improve homogeneity of polymer/asphalt admixtures Koichi Takamura, Paul Velasco, Peter Blanpain, Heinz Plaumann, Richard Liu +2 more 2000-10-03 $296,000
5998514 Random vinyl substituted aromatic/C.sub.4 -C.sub.6 conjugated diolefin polymer modified asphalt mixtures Heinz Plaumann, Koichi Takamura, Arthur Barry Baughman 1999-12-07
5990203 Method for improving the compatibility of random vinyl substituted aromatic/C.sub.4 -C.sub.6 conjugated diolefin polymer/asphalt mixtures Heinz Plaumann, Koichi Takamura, Arthur Barry Baughmann, Wai-chun Richard Liu 1999-11-23
5693707 Liquid absorbent composition for nonwoven binder applications Finn L. Marten, Joel E. Goldstein, Chung-Ling Mao 1997-12-02 $48,357,000
4451625 Reduction of wall fouling in the suspension polymerization of vinyl chloride homopolymer Michael Langsam 1984-05-29 $1,759,000