Robert C. Larsen

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Bartlett, IL, US

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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
Pressure relief valve with a plural-part dry strap
- Patent number 10,358,275
- Issue date Jul 23, 2019
- Plitek, L.L.C.
- Ivan Cramer
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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
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

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
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
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
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 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