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Helmond, Netherlands

Spiro Research B.v.

USPTO Granted Patents = 13

% Expired Patents = 15.4

Trademarks = 5

Forward Citations = 110

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1 inventor (with patents filed for the assignee):

Franciscus Roffelsen (13 out of 15 patents)

13 patents: Sort by Forward Citations

1. 6926069 - Method for manufacturing a double-walled heat exchanging tube with leak detection (2005-08-09),

2. 6526921 - Method for operating a closed hot-water installation and apparatus to be used therewith (2003-03-04),

3. 6192583 - Heat exchanger tube and method of manufacturing same (2001-02-27),

4. 6119951 - Expansion control for a closed fluid circulation system (2000-09-19),

5. 5601635 - Method and apparatus for deaerating a liquid in a substantially closed (1997-02-11),

6. 5456409 - Method and device for maintaining a fluid at a working pressure in a (1995-10-10),

7. 4747737 - Fixing device for mounting objects on supports (1988-05-31),

8. 4718922 - Method of and apparatus for the deaeration of liquid flowing in a closed (1988-01-12),

9. 4655282 - Heat exchanger duct with heat exchange wiring (1987-04-07),

10. 4646823 - Pipe for utility or service systems (1987-03-03),

11. 4645518 - Method and apparatus for reducing the gas content of a liquid (1987-02-24),

12. 4456172 - Method of and apparatus for the degasification of circulation systems (1984-06-26),

13. 4381928 - Apparatus for venting and/or degassing a pipeline system (1983-05-03),

Spiro Research B.v. is a leading research and consulting firm that specializes in providing innovative solutions for businesses seeking to improve their performance and achieve sustainable growth. With a team of experienced professionals and a strong track record of success, Spiro Research B.v. offers a wide range of services, including market research, competitive analysis, and strategic planning. Their unique approach combines data-driven insights with practical expertise to help clients make informed decisions and drive business results.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

13 Patents

#3 in Helmond

#507 in Netherlands

#44,950 in the World

Helmond, Netherlands

Spiro Research B.v.

Forward Citations = 110

1 inventor:

Franciscus Roffelsen (13 out of 15 patents)

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