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Charles Arthur Willus
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Bethel, CT, US
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Patents Grants
last 30 patents
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Patent Grant
Determination of a maximum jetting frequency for an inkjet head
Patent number
9,944,070
Issue date
Apr 17, 2018
Ricoh Company, Ltd.
Stuart Howkins
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Short delay phased firing to reduce crosstalk in an inkjet printing...
Patent number
6,719,390
Issue date
Apr 13, 2004
Hitachi Printing Solutions America, Inc.
Stuart D. Howkins
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ink jet printhead with reduced crosstalk
Patent number
6,394,589
Issue date
May 28, 2002
Hitachi Koki Co., Ltd.
Charles A. Willus
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Filtrate discharge system for pressure filter
Patent number
4,525,274
Issue date
Jun 25, 1985
Dorr-Oliver Incorporated
Charles A. Willus
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Feed seal for bottom feed centrifuge
Patent number
4,430,071
Issue date
Feb 7, 1984
Dorr-Oliver Incorporated
Charles A. Willus
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Nozzle type centrifugal machine with improved slurry pumping chambers
Patent number
4,067,494
Issue date
Jan 10, 1978
Dorr-Oliver Incorporated
Charles Arthur Willus
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Information
Patent Grant
Nozzle type centrifuge
Patent number
4,005,817
Issue date
Feb 1, 1977
Dorr-Oliver Incorporated
Andrew Paul Charlton
B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
Patents Applications
last 30 patents
Information
Patent Application
Structurally isolated inertial transducers for a printing system
Publication number
20040169703
Publication date
Sep 2, 2004
HITACHI PRINTING SOLUTIONS AMERICA, INC.
Stuart D. Howkins
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Obtaining high frequency performance by controlling chamber pressure
Publication number
20040100528
Publication date
May 27, 2004
HITACHI PRINTING SOLUTIONS AMERICA, INC.
Stuart D. Howkins
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS