Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5924088 | Index selection for an index access path | Hakan Jakobsson, Michael Depledge, Jeffrey Ira Cohen | 1999-07-13 |
| 5907297 | Bitmap index compression | Jeffrey Ira Cohen, Michael Depledge, Hakan Jakobsson | 1999-05-25 |
| 5903888 | Method and apparatus for using incompatible types of indexes to process a single query | Jeffrey Ira Cohen, Hakan Jakobsson, Michael Depledge | 1999-05-11 |
| 5899988 | Bitmapped indexing with high granularity locking | Michael Depledge, Jeffrey Ira Cohen, Hakan Jakobsson, Mark Kremer, Quoc Tai Tran +1 more | 1999-05-04 |
| 5884307 | Updating bitmapped indexes | Michael Depledge, Hakan Jakobsson, Jeffrey Ira Cohen | 1999-03-16 |
| 5848408 | Method for executing star queries | Hakan Jakobsson, William Waddington | 1998-12-08 |
| 5822748 | Group by and distinct sort elimination using cost-based optimization | Jeffrey Ira Cohen, Michael Depledge, Hakan Jakobsson | 1998-10-13 |
| 5819256 | Method and apparatus for processing count statements in a database system | Michael Depledge, Hakan Jakobsson, Jeffrey Ira Cohen | 1998-10-06 |