Pencil Patent Dispute?
25th August 2010 by admin No CommentsPatent disputes do not just occur over drugs or electronics. In fact, even the pencil, a simple product used by millions everyday, was at one time part of a court battle.
The first patent for attaching an eraser to a pencil was issued in 1858 to a man from Philadelphia, Pennsylvania. Hyman Lipman received patent number [...]



