Spiro Research B.V.

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing a double-walled heat exchanging tube with...
- Patent number 6,926,069
- Issue date Aug 9, 2005
- Spiro Research B.V.
- Franciscus Roffelsen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for operating a closed hot-water installation and apparatus...
- Patent number 6,526,921
- Issue date Mar 4, 2003
- Spiro Research B.V.
- Franciscus Roffelsen
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heat exchanger tube and method of manufacturing same
- Patent number 6,192,583
- Issue date Feb 27, 2001
- Spiro Research B.V.
- Franciscus Roffelsen
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Expansion control for a closed fluid circulation system
- Patent number 6,119,951
- Issue date Sep 19, 2000
- Spiro Research B.V.
- Franciscus Roffelsen
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Method and apparatus for deaerating a liquid in a substantially clo...
- Patent number 5,601,635
- Issue date Feb 11, 1997
- Spiro Research B.V.
- Franciscus Roffelsen
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Method and device for maintaining a fluid at a working pressure in...
- Patent number 5,456,409
- Issue date Oct 10, 1995
- Spiro Research B.V.
- Franciscus Roffelsen
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Fixing device for mounting objects on supports
- Patent number 4,747,737
- Issue date May 31, 1988
- Spiro Research B.V.
- Franciscus Roffelsen
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of and apparatus for the deaeration of liquid flowing in a c...
- Patent number 4,718,922
- Issue date Jan 12, 1988
- Spiro Research B.V.
- Franciscus Roffelsen
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heat exchanger duct with heat exchange wiring
- Patent number 4,655,282
- Issue date Apr 7, 1987
- Spiro Research B.V.
- Franciscus Roffelsen
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Pipe for utility or service systems
- Patent number 4,646,823
- Issue date Mar 3, 1987
- Spiro Research B.V.
- Franciscus Roffelsen
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Method and apparatus for reducing the gas content of a liquid
- Patent number 4,645,518
- Issue date Feb 24, 1987
- Spiro Research B.V.
- Franciscus Roffelsen
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Method of and apparatus for the degasification of circulation syste...
- Patent number 4,456,172
- Issue date Jun 26, 1984
- Spiro Research B.V.
- Franciscus Roffelsen
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Apparatus for venting and/or degassing a pipeline system
- Patent number 4,381,928
- Issue date May 3, 1983
- Spiro Research B.V.
- Franciscus Roffelsen
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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Trademarklast 30 trademarks

Information Trademark
75591801 - SPIROTOP
- Serial number 75591801
- Registration number 2409901
- Filing date Nov 19, 1998
- SPIRO RESEARCH B.V.
- 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information Trademark
74336697 - SPIROTRAP
- Serial number 74336697
- Registration number 1785428
- Filing date Nov 30, 1992
- SPIRO RESEARCH B.V.
- 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information Trademark
74097376 - SPIROTOP
- Serial number 74097376
- Registration number 1703085
- Filing date Sep 17, 1990
- SPIRO RESEARCH B.V.
- 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information Trademark
74097558 - SPIR-O-SEAL
- Serial number 74097558
- Filing date Sep 17, 1990
- SPIRO RESEARCH B.V.
- 1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information Trademark
74097688 - SPIROTHERM
- Serial number 74097688
- Filing date Sep 17, 1990
- SPIRO RESEARCH B.V.
- 35 - Advertising
Information Trademark
74097719 - SPIRO-MICROPURGE
- Serial number 74097719
- Filing date Sep 17, 1990
- SPIRO RESEARCH B.V.
- 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information Trademark
74097656 - SUPERVENT
- Serial number 74097656
- Filing date Sep 17, 1990
- SPIRO RESEARCH B.V.
- 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information Trademark
74033106 - SPIROTUBE
- Serial number 74033106
- Registration number 1676675
- Filing date Feb 27, 1990
- SPIRO RESEARCH B. V.
- 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information Trademark
73641861 - SPIROTHERM
- Serial number 73641861
- Registration number 1484153
- Filing date Jan 29, 1987
- SPIRO RESEARCH B. V.
- 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
Information Trademark
73641866 - SPIROVENT
- Serial number 73641866
- Registration number 1499435
- Filing date Jan 29, 1987
- SPIRO RESEARCH B. V.
- 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes

Spiro Research B.V.

Organization

Patents Grantslast 30 patents

Method for manufacturing a double-walled heat exchanging tube with...

Method for operating a closed hot-water installation and apparatus...

Heat exchanger tube and method of manufacturing same

Expansion control for a closed fluid circulation system

Method and apparatus for deaerating a liquid in a substantially clo...

Method and device for maintaining a fluid at a working pressure in...

Fixing device for mounting objects on supports

Method of and apparatus for the deaeration of liquid flowing in a c...

Heat exchanger duct with heat exchange wiring

Pipe for utility or service systems

Method and apparatus for reducing the gas content of a liquid

Method of and apparatus for the degasification of circulation syste...

Apparatus for venting and/or degassing a pipeline system

Trademarklast 30 trademarks

75591801 - SPIROTOP

74336697 - SPIROTRAP

74097376 - SPIROTOP

74097558 - SPIR-O-SEAL

74097688 - SPIROTHERM

74097719 - SPIRO-MICROPURGE

74097656 - SUPERVENT

74033106 - SPIROTUBE

73641861 - SPIROTHERM

73641866 - SPIROVENT