Assignee
BUETTNER AG FRANZ
CH·11 granted patents·117 citations·filing 1976–1995
Top patents by PatentIndex Score
11 records- 0179US4153378ARe-inking and ventilation control for inked ribbon cassetteBUETTNER AG FRANZ·Filed 1977·Granted May 8, 1979·27 cites·4 claims
- 0266US4655623AInk ribbon cassetteBUETTNER AG FRANZ·Filed 1985·Granted Apr 7, 1987·17 cites·13 claims
- 0363US4071133ACassette for dye impregnated ribbonBUETTNER AG FRANZ·Filed 1976·Granted Jan 31, 1978·13 cites·1 claims
- 0462US5127750ARefillable ink ribbon cartridgeBUETTNER AG FRANZ·Filed 1990·Granted Jul 7, 1992·19 cites·16 claims
- 0562US4502801ARibbon cassette for word processors, printers and typewritersBUETTNER AG FRANZ·Filed 1983·Granted Mar 5, 1985·16 cites·8 claims
- 0643US4732500ADrive mechanism including floating pressure ring for ink ribbon cassetteBUETTNER AG FRANZ·Filed 1985·Granted Mar 22, 1988·5 cites·13 claims
- 0742USD377663SContainer for tonerBUETTNER AG FRANZ·Filed 1995·Granted Jan 28, 1997·5 cites·1 claims
- 0837US4426169ATypewriting ribbon with adhesively correctable printBUETTNER AG FRANZ·Filed 1981·Granted Jan 17, 1984·5 cites·6 claims
- 0936US4735518AInk ribbon cassetteBUETTNER AG FRANZ·Filed 1986·Granted Apr 5, 1988·3 cites·19 claims
- 1034US4391536AWord processor print wheel assemblyBUETTNER AG FRANZ·Filed 1981·Granted Jul 5, 1983·4 cites·10 claims
- 1122US5062725ATypewriter or printer ribbon and method for its manufactureBUETTNER AG FRANZ·Filed 1990·Granted Nov 5, 1991·3 cites·1 claims
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