BLUM, RONALD D.

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Expired/Abandoned/Withdrawn Patents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
5529728 Process for lens curing and coatingExpiredAug 18, 92Jun 25, 96[B29D]
5516468 Method for the production of plastic lensesExpiredNov 14, 94May 14, 96[B29D]
5514214 Eyeglass lens and mold spin coaterExpiredSep 20, 93May 07, 96[B05C]
5415816 Method for the production of plastic lensesExpiredDec 06, 91May 16, 95[B29D]
5364256 Apparatus for the production of plastic lensesExpiredJan 13, 94Nov 15, 94[B29C, B29D]
4919850 Method for curing plastic lensesExpiredMay 06, 88Apr 24, 90[B29D]
4879318 Plastic lens composition and method for the production thereofExpiredNov 18, 88Nov 07, 89[C08F]
4873029 Method for manufacturing lensesExpiredOct 30, 87Oct 10, 89[B29D]
4728469 Method and apparatus for making a plastic lensExpiredJan 28, 86Mar 01, 88[B29D]

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!.