Assignee
SCHUBERT KEITH E
US·5 granted patents·68 citations·filing 1989–1991
Technology mixB41M5
Top patents by PatentIndex Score
5 records- 0176US5154668ASingle paper sheet forming a two-sided copy of information entered on both sides thereofSCHUBERT KEITH E·Filed 1990·Granted Oct 13, 1992·21 cites·2 claims
- 0274US5197922AMethod and apparatus for producing two-sided carbonless copies of both sides of an original documentSCHUBERT KEITH E·Filed 1989·Granted Mar 30, 1993·15 cites·37 claims
- 0373US5127879AApparatus for recordkeepingSCHUBERT KEITH E·Filed 1989·Granted Jul 7, 1992·14 cites·9 claims
- 0465US5137494ATwo-sided forms and methods of laying out, printing and filling out sameSCHUBERT KEITH E·Filed 1990·Granted Aug 11, 1992·13 cites·12 claims
- 0548US5135437AForm for making two-sided carbonless copies of information entered on both sides of an original sheet and methods of making and using sameSCHUBERT KEITH E·Filed 1991·Granted Aug 4, 1992·5 cites·16 claims
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