Patent Assignment
Reel/Frame 025010/0826
Assignment of Assignor's Interest
Recorded: 2010-09-20
Pages: 5
Assignee
SIGMA-ALDRICH CO.
3050 SPRUCE ST., ST. LOUIS, MISSOURI, 63103
Covered Property
(1)
Purification and Preparation of Phosphorus-Containing Compounds
Application:
12/921,421 →
Publication:
US 2011/0021803
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.