WC

Wen-Hsuan Chang

PI Ppg Industries: 57 patents #1 of 1,216Top 1%
📍 Gibsonia, PA: #5 of 383 inventorsTop 2%
🗺 Pennsylvania: #483 of 74,527 inventorsTop 1%
Overall (All Time): #40,358 of 4,157,543Top 1%
59
Patents All Time

Issued Patents All Time

Showing 26–50 of 59 patents

Patent #TitleCo-InventorsDate
4590254 Non-aqueous poly(urethane-urea) David T. McKeough, Michael M. Chau 1986-05-20
4588783 Amide-containing polyhydroxyethyl carbamates 1986-05-13
4569966 Polymeric microparticles Robert M. Piccirilli, David T. McKeough 1986-02-11
4548998 Thermosetting high solids solvent-based polyester-urethane coating composition and a method of preparing same Ronald R. Ambrose 1985-10-22
4543405 High solids polyurethane polyols and coating compositions thereof Ronald R. Ambrose, David T. McKeough, John R. Peffer 1985-09-24
4540766 Thermosetting high solids solvent-based polyester-urethane one-component coating compositions Ronald R. Ambrose, David T. McKeough, Samuel Porter, Jr., Delano R. Eslinger 1985-09-10
4540771 High solids polyester polyols and resinous polyols thereof Ronald R. Ambrose, David T. McKeough, John R. Peffer 1985-09-10
4535132 Thermosetting high solids solvent-based polyester polyol coating compositions Ronald R. Ambrose, David T. McKeough, Delano R. Eslinger, Samuel Porter, Jr. 1985-08-13
4528333 Curable, iminated resins from aminoplasts and hydroxyl-containing carboxylic acids Robert M. Piccirilli 1985-07-09
4528344 Low molecular weight resins from nonaromatic polyols and aminoplasts 1985-07-09
4501872 Moisture curable compositions containing reaction products of hydrophobic polyols and organosilicon-containing materials David T. McKeough, John R. Peffer 1985-02-26
4485228 Thermosetting high solids solvent-based polyester-urethane two-component _coating compositions Ronald R. Ambrose, David T. McKeough, Samuel Porter, Jr., Byron K. Johnston 1984-11-27
4477618 Aminoplast curable coating compositions containing sulfonic acid esters as latent acid catalysts Debra L. Singer, Gregory J. McCollum, Rostyslaw Dowbenko, Roger M. Christenson, Michael M. Chau 1984-10-16
4469832 Aminoplast curable coating compositions containing polycyclic esters of sulfonic acids as latent acid catalysts Debra L. Singer, Karl F. Schimmel, Rostyslaw Dowbenko, Michael M. Chau 1984-09-04
4468492 Polymeric organo functional silanes as reactive modifying materials Robert M. Piccirilli 1984-08-28
4467081 Gelable, silicate rich resins from hydrophobic polyols and volatile and/or incompatible organosilicates David T. McKeough, John R. Peffer 1984-08-21
4446292 Moisture curable compositions containing reaction products of hydrophobic polyols and monomer organosilicon-containing substances David T. McKeough, John R. Peffer 1984-05-01
4430486 Film-forming urethane resins containing alkoxy silane groups and acrylyl groups Robert M. Piccirilli, Walter F. Kasper 1984-02-07
4429082 Film-forming resins containing alkoxy silane groups Kyu-Wang Lee, John R. Peffer, Robert M. Piccirilli 1984-01-31
4419407 Elastomeric coating compositions Robert M. Piccirilli, Samuel Porter, Jr., James B. O'Dwyer, Kyu-Wang Lee 1983-12-06
4417022 Coating compositions based on polyol-containing film forming components and organic alcoholic reactive diluents James B. O'Dwyer, John R. Peffer 1983-11-22
4413086 Coating compositions containing organosilane-polyol Kyu-Wang Lee, John B. Saunders 1983-11-01
4410668 Elastomeric coating compositions Robert M. Piccirilli, Samuel Porter, Jr., James B. O'Dwyer, Kyu-Wang Lee 1983-10-18
4410667 Elastomeric coating compositions Samuel Porter, Jr., Robert M. Piccirilli, James B. O'Dwyer, Kyu-Wang Lee 1983-10-18
4343925 Coating compositions based on polyol-containing film forming components and organic alcoholic reactive diluents James B. O'Dwyer, John R. Peffer 1982-08-10