Assignee
HOWTEK INC
US·21 granted patents·792 citations·filing 1984–1997
Top patents by PatentIndex Score
21 records- 0193US6606171B1Digitizing scannerHOWTEK INC·Filed 1997·Granted Aug 12, 2003·239 cites·16 claims
- 0292US4741930AInk jet color printing methodHOWTEK INC·Filed 1986·Granted May 3, 1988·59 cites·8 claims
- 0390US4870430ASolid ink delivery systemHOWTEK INC·Filed 1987·Granted Sep 26, 1989·68 cites·11 claims
- 0490US4721635AColor printed record and methodHOWTEK INC·Filed 1986·Granted Jan 26, 1988·64 cites·5 claims
- 0588US4820346AInk jet printer inkHOWTEK INC·Filed 1987·Granted Apr 11, 1989·45 cites·25 claims
- 0687US4666757AColor printed recordHOWTEK INC·Filed 1985·Granted May 19, 1987·39 cites·8 claims
- 0785US4714936AInk jet printerHOWTEK INC·Filed 1985·Granted Dec 22, 1987·50 cites·21 claims
- 0876US4870431AInk jet priming systemHOWTEK INC·Filed 1987·Granted Sep 26, 1989·23 cites·36 claims
- 0975US5237172ACalibrated color scanner with reference level adjustmentHOWTEK INC·Filed 1992·Granted Aug 17, 1993·34 cites·28 claims
- 1075US4591281ASheet-feed mechanism for rotary print headHOWTEK INC·Filed 1984·Granted May 27, 1986·21 cites·23 claims
- 1172US4931095ABenzoate inksHOWTEK INC·Filed 1988·Granted Jun 5, 1990·28 cites·11 claims
- 1266US4928112AInk curing apparatusHOWTEK INC·Filed 1987·Granted May 22, 1990·18 cites·13 claims
- 1359US4968994AHead tending apparatus for an ink jet printerHOWTEK INC·Filed 1989·Granted Nov 6, 1990·11 cites·16 claims
- 1458US6105954ASheet feeder for digitizing scannerHOWTEK INC·Filed 1997·Granted Aug 22, 2000·29 cites·29 claims
- 1554US5424537ACalibrated color scannerHOWTEK INC·Filed 1990·Granted Jun 13, 1995·13 cites·4 claims
- 1654US5084712AHead tending method and apparatus for an ink jet printerHOWTEK INC·Filed 1990·Granted Jan 28, 1992·13 cites·8 claims
- 1752US5196236AInk jet color printing methodHOWTEK INC·Filed 1990·Granted Mar 23, 1993·11 cites·9 claims
- 1844US6023348ARotary image scanner capable of mounting drums of various diametersHOWTEK INC·Filed 1994·Granted Feb 8, 2000·9 cites·69 claims
- 1938US5515182ARotary scannerHOWTEK INC·Filed 1992·Granted May 7, 1996·6 cites·42 claims
- 2037US5367769AMethod of manufacturing a rotary scanning drumHOWTEK INC·Filed 1992·Granted Nov 29, 1994·8 cites·6 claims
- 2130US4974070AColorgraphic reproduction systemHOWTEK INC·Filed 1989·Granted Nov 27, 1990·4 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →