Patent Assignment
Reel/Frame 014047/0481
Assignment of Assignor's Interest
Recorded: 2003-05-06
Pages: 3
Assignor
ESCHE, CARL K.
Executed: 2003-05-06
Assignee
ETHYL CORPORATION
330 SOUTH 4TH STREET, LAW DEPT., PATENTS & TRADEMARKS, RICHMOND, VIRGINIA, 23219
Covered Property
(1)
Low sulfur, low ash, and low phosphorus lubricant additive package using overbased calcium phenate
Application:
10/430,057 →
Publication:
US 2004/0224858
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.