Assignee
KRONOS INC
US·20 granted patents·434 citations·filing 1979–1996
Top patents by PatentIndex Score
20 records- 0194US5408173AManual-adjustment-free controlled-voltage and current-limited D.C. voltage supplyKRONOS INC·Filed 1992·Granted Apr 18, 1995·80 cites·20 claims
- 0280US4270043AMethods of and apparatus for time clock recording and computation and related usesKRONOS INC·Filed 1979·Granted May 26, 1981·65 cites·56 claims
- 0379US5451252ASubpigmentary titanium dioxide with improved photostabilityKRONOS INC·Filed 1994·Granted Sep 19, 1995·47 cites·16 claims
- 0476US6399033B1Process for increasing the yield in the manufacture of titanium dioxide by the chloride processKRONOS INC·Filed 1995·Granted Jun 4, 2002·32 cites·16 claims
- 0562US4818969AMethod of fixed-length binary encoding and decoding and apparatus for sameKRONOS INC·Filed 1988·Granted Apr 4, 1989·19 cites·14 claims
- 0660US5471043AElectro-optic barcode readerKRONOS INC·Filed 1994·Granted Nov 28, 1995·26 cites·15 claims
- 0760US5282977ASeparation of heavy metals from waste water of the titanium dioxide industryKRONOS INC·Filed 1992·Granted Feb 1, 1994·25 cites·4 claims
- 0859US5536487AProcess for the use of rutile promoter and control additives in the manufacture of titanium dioxide by the chloride processKRONOS INC·Filed 1995·Granted Jul 16, 1996·14 cites·13 claims
- 0955US5407650AProcess for purifying a technical iron chloride solution by selective precipitationKRONOS INC·Filed 1993·Granted Apr 18, 1995·19 cites·14 claims
- 1053US4567357AMethod of and apparatus for automatic line identification for recording on employee time cards and the likeKRONOS INC·Filed 1983·Granted Jan 28, 1986·8 cites·2 claims
- 1152US5683669AMetal chloride generator and improved process for the production of metal chlorides used in the manufacture of titanium dioxide by the chloride processKRONOS INC·Filed 1996·Granted Nov 4, 1997·20 cites·6 claims
- 1249US5942201AProcess utilizing titanium dioxide as a catalyst for the hydrolysis of carbonyl sulfideKRONOS INC·Filed 1993·Granted Aug 24, 1999·11 cites·10 claims
- 1342US5248497AProduction of purified iron chloride by a vacuum process in the manufacture of titanium dioxideKRONOS INC·Filed 1992·Granted Sep 28, 1993·7 cites·7 claims
- 1440US5334362AProcess for the production of disposable products from metal chlorides in a titanium dioxide chloride processKRONOS INC·Filed 1992·Granted Aug 2, 1994·11 cites·16 claims
- 1539US5298169ATreatment of waste sulfuric acid by gypsum precipitation in a titanium dioxide processKRONOS INC·Filed 1992·Granted Mar 29, 1994·16 cites·7 claims
- 1637US5540907AProcess for preparing high solids content titanium dioxide suspension with a dechlorinating agentKRONOS INC·Filed 1995·Granted Jul 30, 1996·6 cites·7 claims
- 1737US4524266AMethod of and apparatus for discriminating between various types of check-out periods in employee time-recording systems and the likeKRONOS INC·Filed 1982·Granted Jun 18, 1985·13 cites·4 claims
- 1836US5409679AProcess for the production of titanium dioxideKRONOS INC·Filed 1990·Granted Apr 25, 1995·5 cites·18 claims
- 1932US5326963AElectro-optic barcode readerKRONOS INC·Filed 1992·Granted Jul 5, 1994·4 cites·27 claims
- 2030US4361092AProcess and apparatus for time card preparation and utilization and the likeKRONOS INC·Filed 1980·Granted Nov 30, 1982·6 cites·3 claims
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