OY KWH PIPE AB
Patent Applications and Registrations
Patent applications and USPTO patent grants for OY KWH PIPE AB.The latest application filed is for "method and apparatus for coating pipes".
- OY KWH PIPE AB - Vaasa FI
- Oy KWH Pipe Ab - Vasa FI
- OY KWH PIPE AB; - US
- Oy KWH Pipe Ab - FI FI
- Oy KWH Pipe Ab - Kapellbacksvagen 240 Vasa FI
- Oy KWH Pipe Ab - Helsinki FI
| Patent | Date |
|---|---|
| Apparatus and method for coating pipes or pipe sections Grant 9,186,838 - Leiden , et al. November 17, 2 | 2015-11-17 |
| Method and apparatus for coating pipes Grant 8,932,681 - Leiden , et al. January 13, 2 | 2015-01-13 |
| Multiple layer pipe Grant 8,701,714 - Jansson , et al. April 22, 2 | 2014-04-22 |
| Hollow profile used in the manufacture of a pipe Grant 8,663,767 - Sjoberg , et al. March 4, 2 | 2014-03-04 |
| Method for manufacturing coated pipes Grant 8,568,830 - Finne , et al. October 29, 2 | 2013-10-29 |
| Method And Apparatus For Coating Pipes App 20130214034 - LEIDEN; Leif ; et al. | 2013-08-22 |
| Method and apparatus for coating pipes Grant 8,474,401 - Leiden , et al. July 2, 2 | 2013-07-02 |
| Hollow Profile Used In The Manufacture Of A Pipe App 20130011620 - Sjoberg; Sven ; et al. | 2013-01-10 |
| Method Of Coating Pipes Or Pipe Sections App 20120231160 - Leiden; Leif ; et al. | 2012-09-13 |
| Device for internal cooling of extruded thermoplastics pipes Grant 8,062,013 - Blomqvist , et al. November 22, 2 | 2011-11-22 |
| Container With Antistatic Layer App 20110127262 - Jansson; Patrick | 2011-06-02 |
| Method And Device For Joining Pipes App 20100213701 - Blomqvist; Gunnar ; et al. | 2010-08-26 |
| Hollow profile used in the manufacture of a pipe Grant 7,770,604 - Sjoberg August 10, 2 | 2010-08-10 |
| Multiple Layer Pipe App 20100059132 - Jannson; Patrick ; et al. | 2010-03-11 |
| Method And Device For Internal Cooling Of Extruded Thermoplastics Pipes App 20090139695 - Blomqvist; Gunnar ; et al. | 2009-06-04 |
| Method For Manufacturing Coated Pipes App 20090098296 - Finne; Mikael ; et al. | 2009-04-16 |
| Method for manufacturing a container end wall of lightweight construction and a container provided with such an end wall Grant 7,347,910 - Takala March 25, 2 | 2008-03-25 |
| Hollow profile used in the manufacture of a pipe App 20060225804 - Sjoberg; Sven | 2006-10-12 |
| Method of making a spirally-wound tube Grant 6,939,424 - Takala , et al. September 6, 2 | 2005-09-06 |
| Preparation of an end of a thermoplastics tube manufactured by spirally winding a hollow profile Grant 6,666,945 - Andtbacka , et al. December 23, 2 | 2003-12-23 |
| Welding method in the manufacture of a spirally wound tube and a welding head for performing the method Grant 5,591,292 - Blomqvist January 7, 1 | 1997-01-07 |
| Method for manufacturing a joint pipe Grant 5,411,619 - Sundqvist , et al. May 2, 1 | 1995-05-02 |
| Plastic tube formed by spiral winding of hollow section Grant 5,127,442 - Blomqvist July 7, 1 | 1992-07-07 |
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