Patent Assignment
Reel/Frame 008604/0433
Change of Name
Recorded: 1997-07-21
Pages: 31
Assignor
SEITZ-FILTER-WERKE GMBH & CO.
Executed: 1996-05-31
Assignee
SEITZ-FILTER-WERKE GMBH
BAD KREUZNACH, 55543, GERMANY
Covered Properties
(3)
Multi-Layer Microfiltration Membrane Having an Integrated Prefiltration Layer and Method of Making Same
Patent:
5,620,790 →
Application:
08/494,189 →
Procedure for Filtration of Fluids Using Mf Modules
Patent:
5,879,557 →
Application:
08/619,214 →
Process for the Partial Modification of Porous, Hydrophilitic Filter Membranes, of Filter Membranes Treated in Such Manner and Filter Modules Equipped with Such Filter Membranes, Especially Filter Cartridges
Patent:
6,159,369 →
Application:
08/646,268 →
Related Assignments
(10)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Jun 21, 1995
From: HOLZKI, UDO; MULLER, HEINZ-JOACHIM; RENNER, TILO
To: SEITZ-FILTER-WEERKE GMBH UND CO.
Reel/Frame 007573/0310 →
Assignment of Assignor's Interest
Apr 17, 1996
From: STROHM, GERHARD; SCHNIEDER, GEORG; HEPP, WOLFGANG; DUCHEK, PAUL
To: SEITZ-FILTER-WERKE GMBH UND CO.
Reel/Frame 007949/0801 →
Assignment of Assignor's Interest
Jul 25, 1996
From: STROHM, GERHARD; MULLER, HANS-JOACHIM; KIRSCHNER, MARKUS; HOLZKI, UDO
To: SEITZ-FILTER-WERKE
Reel/Frame 008070/0163 →
Assignment of Assignor's Interest
Sep 22, 2003
From: SEITZ-FILTER-WERKE GMBH UND CO.
To: MULLER, HEINZ-JOACHIM; RENNER, TILO
Reel/Frame 014523/0034 →
Assignment of Assignor's Interest
Nov 20, 2003
From: PALL SEITZSCHENK FILTERSYSTEME GMBH
To: PALL CORPORATION
Reel/Frame 014146/0066 →
Assignment of Assignor's Interest
Nov 20, 2003
From: SEITZ-FILTER WERKE GMBH
To: SEITZCHENK FILTERSYSTEME GMBH
Reel/Frame 014146/0059 →
Assignment of Assignor's Interest
Nov 20, 2003
From: SEITZSCHENK FILTERSYSTEME GMBH
To: PALL SEITZSCHENK FILTERSYSTEME GMBH
Reel/Frame 014146/0068 →
Assignment of Assignor's Interest
Sep 29, 2004
From: MULLER, HEINZ-JOACHIM; RENNER, TILO
To: SARTORIUS AG
Reel/Frame 015829/0272 →
Assignment of Assignor's Interest
Jul 12, 2007
From: SARTORIUS AG
To: SARTORIUS BIOTECH GMBH
Reel/Frame 019573/0722 →
Change of Name
Nov 7, 2007
From: SARTORIUS BIOTECH GMBH
To: SARTORIUS STEDIM BIOTECH GMBH
Reel/Frame 020072/0522 →