DM

David T. McKeough

PI Ppg Industries: 20 patents #23 of 1,216Top 2%
PO Ppg Industries Ohio: 1 patents #741 of 1,316Top 60%
📍 Gibsonia, PA: #31 of 383 inventorsTop 9%
🗺 Pennsylvania: #3,158 of 74,527 inventorsTop 5%
Overall (All Time): #211,845 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
6602603 Poly(meth)acrylic photochromic coating Cletus N. Welch, Robert W. Walters, Eric M. King 2003-08-05
5359005 Stable, one-package, non-gelled coating composition curable under ambient conditions Charles M. Kania, Padmanabhan Sundararaman, Gregory J. McCollum, James B. O'Dwyer 1994-10-25
5034454 Water reducible acrylic with superior dip and flow characteristics/low VOC Rudolf Maska, David L. Holzinger, Susan D. Klejsmit 1991-07-23
4732929 Silicon-containing polyols Wen-Hsuan Chang, John R. Peffer 1988-03-22
4652605 Preparation of low molecular weight polymers by vinyl addition polymerization under dilute reaction conditions using a polymeric diluent Wen-Hsuan Chang, Michael M. Chau, J. Alden Erikson, Robert J. Lipinski, Richard M. Nugent, Jr. 1987-03-24
4628076 Curable coating vehicle based upon aminoalkyloxy silanes and organic isocyanates Wen-Hsuan Chang 1986-12-09
4623697 Ungelled resins containing hydrolyzable moieties from organosilane compounds Wen-Hsuan Chang 1986-11-18
4622369 Urethane resins containing hydrolyzable moieties from organosilane compounds Wen-Hsuan Chang, Ronald R. Ambrose 1986-11-11
4613451 Gelable blends of organosilicon-containing materials and hydrophobic polyols Wen-Hsuan Chang 1986-09-23
4605724 High solids lactone-polyester polyols and coating compositions thereof Ronald R. Ambrose, Wen-Hsuan Chang, John R. Peffer 1986-08-12
4590254 Non-aqueous poly(urethane-urea) Wen-Hsuan Chang, Michael M. Chau 1986-05-20
4569966 Polymeric microparticles Robert M. Piccirilli, Wen-Hsuan Chang 1986-02-11
4543405 High solids polyurethane polyols and coating compositions thereof Ronald R. Ambrose, Wen-Hsuan Chang, John R. Peffer 1985-09-24
4540766 Thermosetting high solids solvent-based polyester-urethane one-component coating compositions Wen-Hsuan Chang, Ronald R. Ambrose, Samuel Porter, Jr., Delano R. Eslinger 1985-09-10
4540771 High solids polyester polyols and resinous polyols thereof Ronald R. Ambrose, Wen-Hsuan Chang, John R. Peffer 1985-09-10
4535132 Thermosetting high solids solvent-based polyester polyol coating compositions Ronald R. Ambrose, Wen-Hsuan Chang, Delano R. Eslinger, Samuel Porter, Jr. 1985-08-13
4501872 Moisture curable compositions containing reaction products of hydrophobic polyols and organosilicon-containing materials Wen-Hsuan Chang, John R. Peffer 1985-02-26
4485228 Thermosetting high solids solvent-based polyester-urethane two-component _coating compositions Wen-Hsuan Chang, Ronald R. Ambrose, Samuel Porter, Jr., Byron K. Johnston 1984-11-27
4467081 Gelable, silicate rich resins from hydrophobic polyols and volatile and/or incompatible organosilicates Wen-Hsuan Chang, John R. Peffer 1984-08-21
4446292 Moisture curable compositions containing reaction products of hydrophobic polyols and monomer organosilicon-containing substances Wen-Hsuan Chang, John R. Peffer 1984-05-01
4205115 Polyester coating composition Robert M. Piccirilli, Wen-Hsuan Chang, Samuel Porter, Jr. 1980-05-27