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Frank Marsden Willis
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Hedgesville, WV, US
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Patents Grants
last 30 patents
Information
Patent Grant
Chromatography column with large diameter end fitting openings
Patent number
8,936,723
Issue date
Jan 20, 2015
Agilent Technologies, Inc.
Mark A. Nickerson
G01 - MEASURING TESTING
Information
Patent Grant
Column for liquid chromatography with adjustable compression
Patent number
7,588,683
Issue date
Sep 15, 2009
Agilent Technologies, Inc.
Frank M. Willis
G01 - MEASURING TESTING
Information
Patent Grant
Liquid chromatography column having metal to metal seals
Patent number
7,101,477
Issue date
Sep 5, 2006
Agilent Technologies, Inc.
Frank M. Willis
G01 - MEASURING TESTING
Information
Patent Grant
Integral, thru-bore, direct coupled high pressure liquid chromatogr...
Patent number
6,679,989
Issue date
Jan 20, 2004
Agilent Technologies, Inc.
Frank Willis
G01 - MEASURING TESTING
Information
Patent Grant
Process for injection molding optical ferrules
Patent number
5,587,116
Issue date
Dec 24, 1996
E. I. Du Pont de Nemours and Company
Melvin H. Johnson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Injection molded optical ferrules and apparatus and processes for t...
Patent number
5,568,581
Issue date
Oct 22, 1996
E. I. Du Pont de Nemours and Company
Melvin H. Johnson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for the preparation of optical ferrules
Patent number
5,482,451
Issue date
Jan 9, 1996
E. I. Du Pont de Nemours
Melvin H. Johnson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for positioning the center of an optical fiber along a pr...
Patent number
5,404,417
Issue date
Apr 4, 1995
E. I. Du Pont de Nemours and Company
Melvin H. Johnson
G02 - OPTICS
Information
Patent Grant
Optical fiber connector having an apparatus for positioning the cen...
Patent number
5,377,289
Issue date
Dec 27, 1994
E. I. Du Pont de Nemours and Company
Melvin H. Johnson
G02 - OPTICS
Information
Patent Grant
Opto-electronic component having positioned optical fiber associate...
Patent number
5,243,673
Issue date
Sep 7, 1993
E. I. Du Pont de Nemours and Company
Melvin H. Johnson
G02 - OPTICS
Information
Patent Grant
Optical fiber feedthrough assembly having a rigidizing arrangement...
Patent number
4,826,276
Issue date
May 2, 1989
E. I. Du Pont de Nemours and Company
Kathleen S. Abbott
G02 - OPTICS
Information
Patent Grant
Electrical resistance heating element with signal means to indicate...
Patent number
4,647,756
Issue date
Mar 3, 1987
E. I. Du Pont de Nemours and Company
Frank M. Willis
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plasmapheresis filtration module having pressure balancing and seal...
Patent number
4,640,776
Issue date
Feb 3, 1987
E. I. Du Pont de Nemours and Company
Robert P. Luoma
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Plasmapheresis filtration module having improved sealing means
Patent number
4,639,317
Issue date
Jan 27, 1987
E. I. Du Pont de Nemours and Company
Robert P. Luoma
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Plasmapheresis filtration module having improved end plate
Patent number
4,636,312
Issue date
Jan 13, 1987
E. I. Du Pont de Nemours and Company
Frank M. Willis
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Vented heating element for sterile cutting and welding together of...
Patent number
4,633,063
Issue date
Dec 30, 1986
E. I. Du Pont de Nemours and Company
Frank M. Willis
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Filler-containing hardenable resin products
Patent number
4,616,050
Issue date
Oct 7, 1986
Walter J. Simmons
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for discharging material
Patent number
4,325,682
Issue date
Apr 20, 1982
E. I. Du Pont de Nemours and Company
Frank M. Willis
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Tampable chub cartridge
Patent number
4,052,939
Issue date
Oct 11, 1977
E. I. Du Pont de Nemours and Company
Walter John Simmons
F42 - AMMUNITION BLASTING
Patents Applications
last 30 patents
Information
Patent Application
Chromatography Column With Large Diameter End Fitting Openings
Publication number
20110049030
Publication date
Mar 3, 2011
Agilent Technologies, Inc.
Mark A. Nickerson
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Column for liquid chromatography with adjustable compression
Publication number
20070029241
Publication date
Feb 8, 2007
Agilent Technologies, Inc.
Frank M. Willis
G01 - MEASURING TESTING
Information
Patent Application
Integral, thru-bore, direct coupled high pressure liquid chromatogr...
Publication number
20020179513
Publication date
Dec 5, 2002
Frank Willis
G01 - MEASURING TESTING