Donald A. Derlein

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Albuquerque, NM, US

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Patents Grantslast 30 patents

Information Patent Grant
Pipe cleaning modules and systems and methods for their use
- Patent number 5,622,571
- Issue date Apr 22, 1997
- Pipeline Services, Inc.
- Donald A. Derlein
- B08 - CLEANING
Information Patent Grant
Pipe cleaning modules and systems and methods for their use
- Patent number 5,435,854
- Issue date Jul 25, 1995
- Pipeline Sewer Services, Inc.
- Donald A. Derlein
- B08 - CLEANING
Information Patent Grant
Pipe cleaning modules and systems and methods for their use
- Patent number 5,122,193
- Issue date Jun 16, 1992
- Albuquerque Underground, Inc.
- Donald A. Derlein
- B08 - CLEANING