Hilfiker Pipe Co.

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Eureka, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Retaining wall system
- Patent number 8,967,917
- Issue date Mar 3, 2015
- Hilfiker Pipe Co., Inc.
- William B. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Compressible welded wire wall for retaining earthen formations
- Patent number RE42680
- Issue date Sep 6, 2011
- Hilfiker Pipe Company
- Harold K. Hilfiker
- 405 - Hydraulic and earth engineering
Information Patent Grant
Compressible welded wire retaining wall and rock face for earthen f...
- Patent number 7,033,118
- Issue date Apr 25, 2006
- Hilfiker Pipe Company
- Harold K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Soil-nail apparatus and method for constructing soil reinforced ear...
- Patent number 6,874,975
- Issue date Apr 5, 2005
- Hilfiker Pipe Company
- William B. Hilfiker
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Compressible welded wire wall for retaining earthen formations
- Patent number 6,357,970
- Issue date Mar 19, 2002
- Hilfiker Pipe Company
- Harold K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Soil filled wall
- Patent number 5,647,695
- Issue date Jul 15, 1997
- Hilfiker Pipe Company
- Harold K. Hilfiker
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Riveted plate connector for retaining wall face panels
- Patent number 4,661,023
- Issue date Apr 28, 1987
- Hilfiker Pipe Co.
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Face panel for seawall
- Patent number D288616
- Issue date Mar 3, 1987
- Hilfiker Pipe Co.
- William K. Hilfiker
- D25 - Building units and construction elements
Information Patent Grant
Soil reinforced cantilever wall
- Patent number 4,643,618
- Issue date Feb 17, 1987
- Hilfiker Pipe Co.
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Archway construction utilizing alternating reinforcing mats and fil...
- Patent number 4,618,283
- Issue date Oct 21, 1986
- Hilfiker Pipe Co.
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Seawall using earth reinforcing mats
- Patent number 4,616,959
- Issue date Oct 14, 1986
- Hilfiker Pipe Co.
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Wire retaining wall apparatus and method for earthen formations
- Patent number 4,505,621
- Issue date Mar 19, 1985
- Hilfiker Pipe Co.
- Harold K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Retaining wall for earthen formations and method of making the same
- Patent number 4,391,557
- Issue date Jul 5, 1983
- Hilfiker Pipe Co.
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Apparatus and method for anchoring the rigid face of a retaining st...
- Patent number 4,343,572
- Issue date Aug 10, 1982
- Hilfiker Pipe Co.
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Method and apparatus for retaining earthen formations through means...
- Patent number 4,329,089
- Issue date May 11, 1982
- Hilfiker Pipe Company
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Retaining and reinforcement system method and apparatus for earthen...
- Patent number 4,324,508
- Issue date Apr 13, 1982
- Hilfiker Pipe Co.
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Retaining wall and anchoring means therefor
- Patent number 4,154,554
- Issue date May 15, 1979
- Hilfiker Pipe Co.
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Fabric structures for earth retaining walls
- Patent number 4,117,686
- Issue date Oct 3, 1978
- Hilfiker Pipe Co.
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Retaining wall structure using precast stretcher sections
- Patent number 4,068,482
- Issue date Jan 17, 1978
- Hilfiker Pipe Company
- William K. Hilfiker
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Road bridge construction with precast concrete modules
- Patent number 4,051,570
- Issue date Oct 4, 1977
- Hilfiker Pipe Co.
- William K. Hilfiker
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Retaining wall stretcher
- Patent number D243697
- Issue date Mar 15, 1977
- Hilfiker Pipe Co.
- William K. Hilfiker
- D25 - Building units and construction elements
Information Patent Grant
Retaining wall stringer
- Patent number D243613
- Issue date Mar 8, 1977
- Hilfiker Pipe Co.
- William K. Hilfiker
- D25 - Building units and construction elements

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
78165935 - SPIRALNAIL
- Serial number 78165935
- Filing date Sep 19, 2002
- HILFIKER PIPE CO.
- 6 - Common metals and their alloys

Hilfiker Pipe Co.

Organization

Patents Grantslast 30 patents

Retaining wall system

Compressible welded wire wall for retaining earthen formations

Compressible welded wire retaining wall and rock face for earthen f...

Soil-nail apparatus and method for constructing soil reinforced ear...

Compressible welded wire wall for retaining earthen formations

Soil filled wall

Riveted plate connector for retaining wall face panels

Face panel for seawall

Soil reinforced cantilever wall

Archway construction utilizing alternating reinforcing mats and fil...

Seawall using earth reinforcing mats

Wire retaining wall apparatus and method for earthen formations

Retaining wall for earthen formations and method of making the same

Apparatus and method for anchoring the rigid face of a retaining st...

Method and apparatus for retaining earthen formations through means...

Retaining and reinforcement system method and apparatus for earthen...

Retaining wall and anchoring means therefor

Fabric structures for earth retaining walls

Retaining wall structure using precast stretcher sections

Road bridge construction with precast concrete modules

Retaining wall stretcher

Retaining wall stringer

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

78165935 - SPIRALNAIL