Psi Star

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

  • No Technology to Display

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

  • No Recent Patents to Display

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4927700 Copper etching process and product with controlled nitrous acid reactionExpiredFeb 06, 89May 22, 90[R32B]
4904339 Vertical spray etch reactor and methodExpiredMay 26, 89Feb 27, 90[C03C, C23F, B44C]
4846918 Copper etching process and product with controlled nitrous acid reactionExpiredFeb 24, 88Jul 11, 89[C23F]
4767661 Copper etching process and productExpiredAug 11, 87Aug 30, 88[C23F, B44C]
4767662 Copper etching process and productExpiredMar 19, 87Aug 30, 88[C23F, B44C, B32B]
4717806 Plasma reactor and methods for useExpiredMay 22, 86Jan 05, 88[B23K]
4711767 Plasma reactor with voltage transformerExpiredApr 30, 86Dec 08, 87[B01J]
4695348 Copper etching process and productExpiredSep 15, 86Sep 22, 87[C23F, B44C]
4632727 Copper etching process and solutionExpiredAug 12, 85Dec 30, 86[C03C, C23F, B44C]
4600563 Plasma reactor with voltage transformerExpiredFeb 05, 85Jul 15, 86[B01J]
4556449 Nickel etching process and solutionExpiredOct 15, 84Dec 03, 85[C23F]
4545850 Regenerative copper etching process and solutionExpiredAug 20, 84Oct 08, 85[C03C, C23F, B44C]
4543153 Process and apparatus for etching copper masked by a nickel-gold maskExpiredMay 17, 84Sep 24, 85[C03C, C23F, B44C]
4497687 Aqueous process for etching cooper and other metalsExpiredDec 20, 83Feb 05, 85[C03C, C23F, B44C]
4482425 Liquid etching reactor and methodExpiredJun 27, 83Nov 13, 84[C03C, C23F, B44C]
4468284 Process for etching an aluminum-copper alloyExpiredJul 06, 83Aug 28, 84[C03C, C23F, B44C]
4466859 Process for etching copperExpiredDec 06, 83Aug 21, 84[C03C, C23F, B44C]
4451327 Process and structure for etching copperExpiredMay 25, 83May 29, 84[C03C, C23F, B44C]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.