| 6449615 |
Method and system for maintaining the integrity of links in a computer network |
Chao Liu, Michael J. Hillberg, James W. Kelly, Jr., Clifford P. Van Dyke |
2002-09-10 |
| 6230212 |
Method and system for the link tracking of objects |
Edward Jung |
2001-05-08 |
| 5742284 |
Object based system comprising weak links |
Hugh Duggan |
1998-04-21 |
| 5721919 |
Method and system for the link tracking of objects |
Edward Jung |
1998-02-24 |
| 5619638 |
Object based computer system having representation objects for providing interpretative views onto a data object |
Hugh Duggan |
1997-04-08 |
| 5615336 |
Selective user coupling for shared object oriented computer system |
Christopher J. Robson, Hugh Duggan |
1997-03-25 |
| 5584035 |
Object based system comprising user interface permitting manipulation of objects by users |
Hugh Duggan |
1996-12-10 |
| 5572731 |
Sequentially navigated object oriented computer system |
Christopher J. Robson, Hugh Duggan |
1996-11-05 |
| 5428785 |
Distributed computer system log-on device for storing and retrieving a user's view of objects at log-off |
Hugh Duggan |
1995-06-27 |
