Excavation Engineering Associates, Inc.

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Seattle, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Small disc cutter, and drill bits, cutterheads, and tunnel boring m...
- Patent number 6,131,676
- Issue date Oct 17, 2000
- Excavation Engineering Associates, Inc.
- James E. Friant
- E21 - EARTH DRILLING MINING
Information Patent Grant
Shielded cutterhead with small rolling disc cutters
- Patent number 5,961,185
- Issue date Oct 5, 1999
- Excavation Engineering Associates, Inc.
- James E. Friant
- E21 - EARTH DRILLING MINING
Information Patent Grant
Disc cutter and excavation equipment
- Patent number 5,904,211
- Issue date May 18, 1999
- Excavation Engineering Associates, Inc.
- James E. Friant
- E21 - EARTH DRILLING MINING
Information Patent Grant
Disc cutter and method of replacing disc cutters
- Patent number 5,626,201
- Issue date May 6, 1997
- Excavation Engineering Associates, Inc.
- James E. Friant
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
75361441 - MINI-DISC
- Serial number 75361441
- Registration number 2239939
- Filing date Sep 23, 1997
- EXCAVATION ENGINEERING ASSOCIATES, INC.
- 7 - Machines and machine tools