John A. MacDonald

City:

Calgary

Country:

Canada

Published Applications:

Last publication date:

2011-11-10

Top Assignees for applications by John A. MacDonald

The entities that hold a legal rights for patent applications filed by inventor MacDonald John A.:

John A. MacDonald from Calgary, CA has applied for patents for these inventions. The list has both pending applications and granted patents:

System and method that removes contaminants from sulfur

InventorID:

6285660 ⎘