Karl K. Hoffman

Person

Arlington Heights, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Pressure relief valve with wetting fluid reservoirs
- Patent number 11,352,183
- Issue date Jun 7, 2022
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method for lubricating pressure relief valves
- Patent number 9,821,528
- Issue date Nov 21, 2017
- Plitek, L.L.C.
- Karl K. Hoffman
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Grant
Oil-less pressure relief valves
- Patent number 9,187,229
- Issue date Nov 17, 2015
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus and method for tin-tie application
- Patent number 8,820,381
- Issue date Sep 2, 2014
- Plitek L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Oil-less pressure relief valves
- Patent number 8,783,292
- Issue date Jul 22, 2014
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Oil-less and wetted pressure relief valves having an integrated filter
- Patent number 8,636,034
- Issue date Jan 28, 2014
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus and method for lubricating pressure relief valves
- Patent number 8,522,926
- Issue date Sep 3, 2013
- Plitek, L.L.C.
- Karl K. Hoffman
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Apparatus for the application of pressure relief valves
- Patent number 8,082,644
- Issue date Dec 27, 2011
- Plitek L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Pressure relief valve with stiff support
- Patent number 7,637,283
- Issue date Dec 29, 2009
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Reversed pressure relief valve
- Patent number 7,611,557
- Issue date Nov 3, 2009
- Plitek, L.L.C.
- Karl K. Hoffman
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for the application of pressure relief valves
- Patent number 7,472,524
- Issue date Jan 6, 2009
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus and method for the application of pressure relief valves
- Patent number 7,328,543
- Issue date Feb 12, 2008
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method for manufacturing lifter for a disc cartridge and feed stock...
- Patent number 5,561,574
- Issue date Oct 1, 1996
- Plitek L.L.C.
- Roger K. Engel
- G11 - INFORMATION STORAGE
Information Patent Grant
Hang tab for containers
- Patent number 5,511,883
- Issue date Apr 30, 1996
- Plitek, L.L.C.
- John Clark
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Diskette spring and diskette
- Patent number 4,620,247
- Issue date Oct 28, 1986
- Plicon Corporation
- Walter A. Papciak
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Pressure Relief Valve with High Pressure Opening and Closing Functi...
- Publication number 20240246741
- Publication date Jul 25, 2024
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Wetting Fluid Applicator and Method of Applying Wetting Fluid to a...
- Publication number 20240003451
- Publication date Jan 4, 2024
- Plitek, L.L.C.
- Karl K. Hoffman
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Pressure Relief Valve with Wetting Fluid Reservoirs
- Publication number 20210276780
- Publication date Sep 9, 2021
- PLITEK, LLC
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Method For Lubricating Pressure Relief Valves
- Publication number 20170246826
- Publication date Aug 31, 2017
- Karl K. Hoffman
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Application
Single-Serve Cartridge with Pressure Relief Valve
- Publication number 20150135967
- Publication date May 21, 2015
- PLITEK, LLC
- Karl K. Hoffman
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
Method For Lubricating Pressure Relief Valves
- Publication number 20150038309
- Publication date Feb 5, 2015
- Karl K. Hoffman
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
Information Patent Application
OIL-LESS PRESSURE RELIEF VALVES
- Publication number 20140318653
- Publication date Oct 30, 2014
- PLITEK, LLC
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Oil-Less and Wetted Pressure Relief Valves Having an Integrated Filter
- Publication number 20130048125
- Publication date Feb 28, 2013
- PLITEK, LLC
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Oil-less pressure relief valves
- Publication number 20130048635
- Publication date Feb 28, 2013
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
APPARATUS AND METHOD FOR TIN-TIE APPLICATION
- Publication number 20120247346
- Publication date Oct 4, 2012
- Karl K. Hoffman
- B30 - PRESSES
Information Patent Application
Apparatus for the application of pressure relief valves
- Publication number 20090271965
- Publication date Nov 5, 2009
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Interior-mountable pressure relief valve
- Publication number 20090169693
- Publication date Jul 2, 2009
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Method for the application of pressure relief vales
- Publication number 20080172985
- Publication date Jul 24, 2008
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Apparatus and method for lubricating pressure relief valves
- Publication number 20080041663
- Publication date Feb 21, 2008
- Plitek, L.L.C.
- Karl K. Hoffman
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
APPARATUS AND METHOD FOR THE APPLICATION OF PRESSURE RELIEF VALVES
- Publication number 20070266675
- Publication date Nov 22, 2007
- Plitek, L.L.C.
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Pressure relief valve with stiff support
- Publication number 20060263497
- Publication date Nov 23, 2006
- Karl K. Hoffman
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Reversed pressure relief valve
- Publication number 20060227462
- Publication date Oct 12, 2006
- Karl K. Hoffman
- G11 - INFORMATION STORAGE

Karl K. Hoffman

Person

Patents Grantslast 30 patents

Pressure relief valve with wetting fluid reservoirs

Method for lubricating pressure relief valves

Oil-less pressure relief valves

Apparatus and method for tin-tie application

Oil-less pressure relief valves

Oil-less and wetted pressure relief valves having an integrated filter

Apparatus and method for lubricating pressure relief valves

Apparatus for the application of pressure relief valves

Pressure relief valve with stiff support

Reversed pressure relief valve

Method for the application of pressure relief valves

Apparatus and method for the application of pressure relief valves

Method for manufacturing lifter for a disc cartridge and feed stock...

Hang tab for containers

Diskette spring and diskette

Patents Applicationslast 30 patents

Pressure Relief Valve with High Pressure Opening and Closing Functi...

Wetting Fluid Applicator and Method of Applying Wetting Fluid to a...

Pressure Relief Valve with Wetting Fluid Reservoirs

Method For Lubricating Pressure Relief Valves

Single-Serve Cartridge with Pressure Relief Valve

Method For Lubricating Pressure Relief Valves

OIL-LESS PRESSURE RELIEF VALVES

Oil-Less and Wetted Pressure Relief Valves Having an Integrated Filter

Oil-less pressure relief valves

APPARATUS AND METHOD FOR TIN-TIE APPLICATION

Apparatus for the application of pressure relief valves

Interior-mountable pressure relief valve

Method for the application of pressure relief vales

Apparatus and method for lubricating pressure relief valves

APPARATUS AND METHOD FOR THE APPLICATION OF PRESSURE RELIEF VALVES

Pressure relief valve with stiff support

Reversed pressure relief valve