Kwan Software Engineering, Inc.
Records under this name other than the patents Kwan Software Engineering, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 1 patents it holds.
Showing 1 to 5 of 5 · Back to Kwan Software Engineering, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,480,796 | System and method for authenticating data using incompatible digest functions Term ended Term ended Nov 12, 2023 · From the USPTO record | Term ended | Term ended Nov 12, 2023 | From the USPTO record |
| US 8,433,899 | System and method for authenticating data using incompatible digest functions Term ended Ended no later than Mar 19, 2022 · From the USPTO record | Term ended | Ended no later than Mar 19, 2022 | From the USPTO record |
| US 6,434,701 | System and method for digitally marking a file Term ended Ended no later than Apr 6, 2019 · From the USPTO record | Term ended | Ended no later than Apr 6, 2019 | From the USPTO record |
| US 8,285,995 | System and method for digitally marking a file with a removable mark Lapsed on the fee record Ended Oct 9, 2016 · From the USPTO record | Lapsed on the fee record | Ended Oct 9, 2016 | From the USPTO record |
| US 6,792,535 | System and method for digitally marking a file with a removable mark Lapsed on the fee record Ended Sep 14, 2016 · From the USPTO record | Lapsed on the fee record | Ended Sep 14, 2016 | From the USPTO record |