Herman E. Frentzel

Person

Kentfield, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Underwater pool cleaning apparatus
- Patent number D304505
- Issue date Nov 7, 1989
- Aquanaut, Inc.
- Robert W. Maier
- D32 - Washing, cleaning, or drying machine
Information Patent Grant
Skimmer cover plate
- Patent number 4,823,837
- Issue date Apr 25, 1989
- Arneson Products, Inc.
- Herman E. Frentzel
- E04 - BUILDING
Information Patent Grant
Safety fitting for a vacuum orifice in a swimming pool
- Patent number 4,817,991
- Issue date Apr 4, 1989
- Arneson Products, Inc.
- Herman E. Frentzel
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Skimmer cover plate
- Patent number 4,776,953
- Issue date Oct 11, 1988
- Arneson Products Inc.
- Herman E. Frentzel
- E04 - BUILDING
Information Patent Grant
Automatic valve for use with pool cleaning devices
- Patent number 4,729,406
- Issue date Mar 8, 1988
- Arneson Products, Inc.
- Herman E. Frentzel
- E04 - BUILDING
Information Patent Grant
In-line filter for a low pressure pool cleaning system
- Patent number 4,654,141
- Issue date Mar 31, 1987
- Arneson Products, Inc.
- Herman E. Frentzel
- E04 - BUILDING
Information Patent Grant
Automatic valve for use with pool cleaning devices
- Patent number 4,643,217
- Issue date Feb 17, 1987
- Arneson Products, Inc.
- Herman E. Frentzel
- E04 - BUILDING
Information Patent Grant
Low pressure pool cleaner system
- Patent number 4,592,378
- Issue date Jun 3, 1986
- Herman E. Frentzel
- E04 - BUILDING
Information Patent Grant
Low pressure pool cleaner system
- Patent number 4,569,361
- Issue date Feb 11, 1986
- Arneson Products, Inc.
- Herman E. Frentzel
- E04 - BUILDING
Information Patent Grant
Low pressure pool cleaner
- Patent number 4,526,186
- Issue date Jul 2, 1985
- Arneson Products, Inc.
- Herman E. Frentzel
- E04 - BUILDING
Information Patent Grant
Machine for encapsulating food in dough
- Patent number 4,343,603
- Issue date Aug 10, 1982
- Pavlow; Roger
- Roger Pavlow
- A21 - BAKING EDIBLE DOUGHS
Information Patent Grant
Deck container restraint apparatus and process
- Patent number 4,221,515
- Issue date Sep 9, 1980
- Matson Navigation Company
- James A. Brown
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Meat slicer
- Patent number 3,951,054
- Issue date Apr 20, 1976
- Collins Foods International, Inc.
- Herman E. Frentzel
- A22 - BUTCHERING MEAT TREATMENT PROCESSING POULTRY OR FISH

Herman E. Frentzel

Person

Patents Grantslast 30 patents

Underwater pool cleaning apparatus

Skimmer cover plate

Safety fitting for a vacuum orifice in a swimming pool

Skimmer cover plate

Automatic valve for use with pool cleaning devices

In-line filter for a low pressure pool cleaning system

Automatic valve for use with pool cleaning devices

Low pressure pool cleaner system

Low pressure pool cleaner system

Low pressure pool cleaner

Machine for encapsulating food in dough

Deck container restraint apparatus and process

Meat slicer