MW

Mark W. Witman

MC Mobay Chemical: 11 patents #2 of 131Top 2%
MO Mobay: 7 patents #9 of 172Top 6%
BH Bayer Healthcare: 6 patents #1,523 of 8,007Top 20%
BA Bayer Materialscience Ag: 1 patents #483 of 1,035Top 50%
Overall (All Time): #175,111 of 4,157,543Top 5%
24
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8206463 Colored article of manufacture and a process for its preparation Robert A. Pyles, Rick L. Archey, Joseph D. Ventura 2012-06-26
5087524 Article molded from a polycarbonate composition having improved platability Sivaram Krishnan, Ronald L. Price, Peter H. Shu 1992-02-11
4828921 Polycarbonate molding compositions Sivaram Krishnan, Wolfgang Siebourg, Ronald L. Price 1989-05-09
4753994 Flame retardant polycarbonate compositions Russell P. Carter, Jr., Ulrich Grigo, Sivaram Krishnan, Klaus Kircher, Hans-Jurgen Kress +1 more 1988-06-28
4745148 Thermoplastic polyester molding composition having an improved impact performance James Y. J. Chung, Peter H. Markusch 1988-05-17
4732949 Polydiorganosiloxane/polycarbonate block copolymers Winfried Paul, Werner Nouvertne, Hartmut Lower, Ulrich Grigo 1988-03-22
4732922 Flame retardant polyethylene terephthalate compositions George R. Kriek 1988-03-22
4677162 Polycarbonate blends having low gloss Ulrich Grigo, Nelson R. Lazear 1987-06-30
4649168 Process for the preparation of flame-resistant polycarbonate moulding compositions containing tetrafluoroethylene polymers Hans-Jurgen Kress, Ludwig Bottenbruch, Klaus Kircher, Christian Lindner, Karl-Heinz Ott 1987-03-10
4603170 Moulding compositions comprising an aromatic polycarbonate and a sulfone group containing polyester Wolfgang Stix, Karl-Heinz Köhler, Leo Morbitzer 1986-07-29
4600632 UV-stabilized polycarbonate mouldings Winfried Paul, Hartmut Lower, Peter Muller, Siegfried Storp 1986-07-15
4599395 Thermotropic, aromatic polyesters having good mechanical strength, containing sulfonic acid groups or metal sulfonate groups a process for the production thereof Hans-Rudolf Dicke, Manfred Schmidt, Aziz El-Sayed 1986-07-08
4581397 Stabilized polycarbonate composition 1986-04-08
4563503 Polycarbonate compositions having improved impact performance Gerard E. Reinert 1986-01-07
4554314 Thermoplastic molding compositions James Y. J. Chung, Dieter Neuray 1985-11-19
4535143 Process for the preparation of copolycarbonates of sulfonyl diphenol Ronald L. Price, Sivaram Krishnan 1985-08-13
4515921 Polycarbonate compositions having a high impact strength and melt flow rate 1985-05-07
4506047 Polycarbonate compositions having improved rigidity Gerard E. Reinert 1985-03-19
4500653 Blowing agents for thermoplastic compositions Manfred Schmidt, Gerard E. Reinert, In-Chun Lim 1985-02-19
4472554 Polycarbonate ABS blends of improved impact strength Ulrich Grigo, Nelson R. Lazear 1984-09-18
4425456 Copolycarbonates based on bis(4-hydroxyphenyl)biphenyl disulfone Arthur L. Baron, Sivaram Krishnan, Roger J. White 1984-01-10
4410662 Polycarbonate having an improved impact performance Gerard E. Reinert 1983-10-18
4378449 Impact modified polycarbonates 1983-03-29
4299928 Impact modified polycarbonates 1981-11-10