Keith R. Bartlett

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Groveland, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sheet-like masonry block drainage system
- Patent number 6,564,520
- Issue date May 20, 2003
- W. R. Grace & Co.-Conn.
- Donald A. Starke
- E04 - BUILDING
Information Patent Grant
Waterproofing membrane
- Patent number 5,496,615
- Issue date Mar 5, 1996
- W. R. Grace & Co.-Conn.
- Keith R. Bartlett
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Waterproofing membrane
- Patent number 5,316,848
- Issue date May 31, 1994
- W. R. Grace & Co.-Conn.
- Keith R. Bartlett
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Finned subterranean drainage device and method for fabricating the...
- Patent number 5,263,792
- Issue date Nov 23, 1993
- W. R. Grace & Co.-Conn.
- Everett R. Davis
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING