BERKSHIRE CORPORATION

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156

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

Patent # Title Filing Date Issue Date Intl Class
8431497 Clean room wipesAug 25, 09Apr 30, 13[D01F, B32B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2003/0200,994 Pad for use in a critical environmentAbandonedApr 04, 03Oct 30, 03[B08B]
6578227 Pad for use in a critical environmentExpiredMar 13, 01Jun 17, 03[B08B]
6308538 Method and apparatus for manufacturing individual wipers having finished edgesExpiredJul 22, 99Oct 30, 01[D04B]
5229181 Tubular knit cleanroom wiperExpiredOct 30, 90Jul 20, 93[D04B, A47K, B32B]

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!.