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TWIN RIVERS ENGINEERING DBA RYNEL, LTD
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BOOTHBAY, ME, US
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Patents Grants
last 30 patents
Information
Patent Grant
Infrared leak detector
Patent number
7,022,993
Issue date
Apr 4, 2006
Twin Rivers Engineering, Inc.
William J. Williams, II
G01 - MEASURING TESTING
Information
Patent Grant
Infrared leak detector
Patent number
6,791,088
Issue date
Sep 14, 2004
Twin Rivers Engineering, Inc.
William J. Williams
G01 - MEASURING TESTING
Information
Patent Grant
Method of forming a foam substrate and micropackaged active ingredi...
Patent number
5,098,621
Issue date
Mar 24, 1992
Twin Rivers Engineering
Paul F. Hermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Foam substrate and micropackaged active ingredient particle composi...
Patent number
4,828,542
Issue date
May 9, 1989
Twin Rivers Engineering
Paul F. Hermann
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Composite active filter material
Patent number
4,619,948
Issue date
Oct 28, 1986
Twin Rivers Engineering
T. Scott Kennedy
A41 - WEARING APPAREL
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
74248275 - AMREL
Serial number
74248275
Registration number
1723769
Filing date
Feb 21, 1992
Twin Rivers Engineering, Inc.
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
73728105 - RYNEL
Serial number
73728105
Registration number
1522918
Filing date
May 13, 1988
TWIN RIVERS ENGINEERING, INC.
37 - Building construction