Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6194625 | Alkylation by controlling olefin ratios | David Campbell Graves, Ken Kranz, James Kevin Millard | 2001-02-27 |
| 5841014 | Alkylation by controlling olefin ratios | David Campbell Graves, Ken Kranz, James Kevin Millard | 1998-11-24 |