Pkware, Inc.
Records under this name other than the patents Pkware, 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 9 patents it holds.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,225,108 | Method and System for Mixed Symmetric and Asymmetric Encryption of .zip Files Term ended Term ended Jun 25, 2026 · High confidence | Term ended | Term ended Jun 25, 2026 | High confidence |
| US 7,793,099 | Method and System for Encryption of File Characteristics of .zip Files Term ended Term ended Jun 11, 2025 · High confidence | Term ended | Term ended Jun 11, 2025 | High confidence |
| US 11,461,487 | Method for Strongly Encrypting .zip Files Term ended Term ended Mar 14, 2024 · High confidence | Term ended | Term ended Mar 14, 2024 | High confidence |
| US 9,098,721 | Method for Strongly Encrypting .zip Files Term ended Term ended Jul 16, 2023 · High confidence | Term ended | Term ended Jul 16, 2023 | High confidence |
| US 10,127,397 | Method for Strongly Encrypting .zip Files Term ended Term ended Jul 16, 2023 · High confidence | Term ended | Term ended Jul 16, 2023 | High confidence |
| US 10,607,024 | Method for Strongly Encrypting .zip Files Term ended Term ended Jul 16, 2023 · High confidence | Term ended | Term ended Jul 16, 2023 | High confidence |
| US 8,230,482 | System and Method for Manipulating and Managing Computer Archive Files Term ended Term ended May 6, 2023 · High confidence | Term ended | Term ended May 6, 2023 | High confidence |
| US 7,844,579 | System and Method for Manipulating and Managing Computer Archive Files Term ended Term ended Feb 21, 2022 · High confidence | Term ended | Term ended Feb 21, 2022 | High confidence |
| US 7,890,465 | Systems and Methods for Manipulating and Managing Computer Archive Files Term ended Term ended Jan 26, 2022 · High confidence | Term ended | Term ended Jan 26, 2022 | High confidence |
| US 8,090,942 | Method and System for Asymmetrically Encrypting .zip Files Term ended Ended no later than Dec 10, 2021 · Medium confidence | Term ended | Ended no later than Dec 10, 2021 | Medium confidence |