Hellgren; Keijo

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hellgren; Keijo.The latest application filed is for "diaphragm device".

Company Profile

0.14.10

Hellgren; Keijo - Vasteras SE
Hellgren; Keijo - US
Hellgren, Keijo - Langdhoppargatan Vasteras SE
Hellgren; Keijo - Vaster.ANG.s SE
Hellgren; Keijo - Ludvika SW

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Device and method for expansion forming Grant 7,509,827 - Hellgren March 31, 2	2009-03-31
Press plant and a method and use for it with a pressure cell and a divisible tray Grant 7,461,531 - Hellgren December 9, 2	2008-12-09
Method of exchanging a diaphragm device Grant 7,320,211 - Hellgren January 22, 2	2008-01-22
Fluid cell press with a gripping arrangement and method and use of the press Grant 7,155,949 - Hellgren January 2, 2	2007-01-02
Forming tool Grant 7,155,948 - Hellgren January 2, 2	2007-01-02
Pressure cell press comprising a tray, and a method for manufacturing said tray Grant 7,150,171 - Hellgren December 19, 2	2006-12-19
Hydraulic press with a pressure cell and a method and use for it, whose press body consists of prestressed lamellas Grant 7,150,177 - Hellgren December 19, 2	2006-12-19
Diaphragm support and a method for initial sealing in a pressure cell Grant 7,127,925 - Hellgren October 31, 2	2006-10-31
Diaphragm device App 20060191306 - Hellgren; Keijo	2006-08-31
High pressure press, method for operating a high pressure press and use of such a press Grant 7,096,774 - Hellgren August 29, 2	2006-08-29
Pressure cell press comprising a tray, and a method for manufacturing said tray App 20060123863 - Hellgren; Keijo	2006-06-15
Fluid cell press with a gripping arrangement and method and use of the press App 20060117826 - Hellgren; Keijo	2006-06-08
Forming tool App 20060086166 - Hellgren; Keijo	2006-04-27
Device and method for expansion forming App 20060075796 - Hellgren; Keijo	2006-04-13
High pressure press, method for operating a high pressure press and use of such a press App 20040074404 - Hellgren, Keijo	2004-04-22
Hydraulic press with pressure cell with a tray whic consists of prestressed lamellas App 20040065138 - Hellgren, Keijo	2004-04-08
Hydraulic press with a pressure cell and a method and use for it, whose press body consists of prestressed lamellas App 20040065137 - Hellgren, Keijo	2004-04-08
Diaphragm support and a method for initial sealing in a pressure cell App 20040055480 - Hellgren, Keijo	2004-03-25
Press plant and a method and use for it with a pressure cell and a divisible tray App 20040050263 - Hellgren, Keijo	2004-03-18
Forming press mat utilizes trays formed of thin bottom plates and separate annular frames Grant 4,711,111 - Hellgren December 8, 1	1987-12-08
Forming press of the pressure cell type and a process for changing diaphrams in such a press Grant 4,693,103 - Hellgren September 15, 1	1987-09-15
Press of pressure cell type Grant 4,676,086 - Hellgren June 30, 1	1987-06-30
Transportation units for supporting and moving plate-formed attachment member into and out of a press stand of hydraulic press Grant 4,112,724 - Claesson , et al. September 12, 1	1978-09-12
Thyristor-rectifier Controlled By Light Pulses Of Equal Intensity At The End Of Light-conducting Rods Grant 3,628,035 - Olsson , et al. December 14, 1	1971-12-14

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