Patent Assignment
Reel/Frame 003855/0410
Assignment of Assignors Interest.
Recorded: 1981-06-01
Pages: 1
Assignor
CHEN JOHNSON CHENG-HSIUNG
Executed: 1979-07-26
Assignee
PENNWALT CORPORATION
THREE PARKWAY, A CORP. OF PA., PHILADELPHIA, PENNSYLVANIA
Covered Property
(1)
Thermal Energy Storage Composition Comprising Sodium Sulfate Decahydrate:Sodium Carbonste Decahydrate; and Sodium Tetraborate Decahydrate
Patent:
4,292,189 →
Application:
06/061,590 →
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger and Change of Name Effective on December 31, 1989, in Pennsylvania
Sep 17, 1990
From: ATOCHEM INC., A DE CORP. (MERGED INTO); M&T CHEMICALS INC., A DE CORP. (MERGED INTO); PENNWALT CORPORATION, A PA CORP. (CHANGED TO)
To: ATOCHEM NORTH AMERICA, INC., A PA CORP.
Reel/Frame 005496/0003 →
Change of Name
Jul 25, 2000
From: ELF ATOCHEM NORTH AMERICA, INC., A CORP. OF PENNSYLVANIA
To: ATOFINA CHEMICALS, INC., A CORP. OF PENNSYLVANIA
Reel/Frame 011007/0001 →