PG

Periya Gopalan

Applied Materials: 8 patents #1,541 of 7,310Top 25%
SP Speedfam-Ipec: 8 patents #11 of 143Top 8%
NS Novellus Systems: 1 patents #479 of 780Top 65%
SC Speedfam Co.: 1 patents #48 of 105Top 50%
The Johns Hopkins University: 1 patents #1,892 of 4,416Top 45%
Overall (All Time): #230,394 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12330260 Polishing pad with secondary window seal Rajkumar Alagarsamy, Yongqi Hu, Simon Yavelberg, Christopher R. Mahon 2025-06-17
11794308 Printed chemical mechanical polishing pad having particles therein Kasiraman Krishnan, Nag B. Patibandla 2023-10-24
11618124 Polishing pad with secondary window seal Rajkumar Alagarsamy, Yongqi Hu, Simon Yavelberg, Christopher R. Mahon 2023-04-04
10744618 Polishing pad with secondary window seal Rajkumar Alagarsamy, Yongqi Hu, Simon Yavelberg, Christopher R. Mahon 2020-08-18
10016877 Printed chemical mechanical polishing pad having abrasives therein and system for printing Kasiraman Krishnan, Nag B. Patibandla 2018-07-10
9731397 Polishing pad with secondary window seal Rajkumar Alagarsamy, Yongqi Hu, Simon Yavelberg, Christopher R. Mahon 2017-08-15
9421666 Printed chemical mechanical polishing pad having abrasives therein Kasiraman Krishnan, Nag B. Patibandla 2016-08-23
8961266 Polishing pad with secondary window seal Rajkumar Alagarsamy, Yongqi Hu, Simon Yavelberg, Christopher R. Mahon 2015-02-24
7297239 Method and apparatus for the electrochemical deposition and planarization of a material on a workpiece surface Ismail Emesh, Phillip M. Rayer, II, Bentley J. Palmer 2007-11-20
6818604 System and method for cleaning workpieces Ismail Emesh, Yakov Epshteyn, Guangshum Chen, Xingbo Yang 2004-11-16
6802955 Method and apparatus for the electrochemical deposition and planarization of a material on a workpiece surface Ismail Emesh, Phillip M. Rayer, II, Bentley J. Palmer 2004-10-12
6685537 Polishing pad window for a chemical mechanical polishing tool Clinton O. Fruitman, Mark Meloni, Andrew Michael Yednak, III 2004-02-03
6582587 Cathodic protection design method, current mapping and system Rengaswamy Srinivasan, Paul R. Zarriello 2003-06-24
6368183 Wafer cleaning apparatus and associated wafer processing methods Daniel Ray Trojan, Jon MacErnie 2002-04-09
6364745 Mapping system for semiconductor wafer cassettes Jose R. Gonzalez-Martin, Chris Karlsrud, Robert F. Allen, Toby Jordan, Craig Howard +5 more 2002-04-02
6350177 Combined CMP and wafer cleaning apparatus and associated methods Jose R. Gonzalez-Martin, Chris Karlsrud, Robert F. Allen, Toby Jordan, Craig Howard +5 more 2002-02-26
6213853 Integral machine for polishing, cleaning, rinsing and drying workpieces Jose R. Gonzalez-Martin, Chris Karlsrud, Robert F. Allen, Toby Jordan, Craig Howard +5 more 2001-04-10
6125861 Post-CMP wet-HF cleaning station Anand Gupta, Chris Karlsrud, Daniel Ray Trojan, Jeffrey Butler Cunnane, Jon MacErnie 2000-10-03
5954888 Post-CMP wet-HF cleaning station Anand Gupta, Chris Karlsrud 1999-09-21