| 2026-02-27 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2026-02-27 | 2) LiqTech International A/S, a Danish limited company | |
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| 2026-02-27 | 3) Liqtech NA, Inc., a Delaware corporation; and | |
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| 2026-02-27 | 4) LiqTech Water Projects A/S, a Danish company | |
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| 2026-02-27 | 5) Liqtech Ceramics A/S, a Danish limited company | |
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| 2026-02-27 | 6) Liqtech Water A/S, a Danish limited company | |
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| 2026-02-27 | 7) Liqtech Plastic A/S, a Danish limited company | |
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| 2026-02-27 | 8) Liqtech Emission Control A/S, a Danish limited company; and | |
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| 2026-02-27 | 9) Nantong JiTRI LiqTech Green Energy Technology Co., Ltd., a Chinese limited company. | |
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| 2025-03-28 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2025-03-28 | 2) LiqTech International A/S, a Danish limited company | |
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| 2025-03-28 | 3) Liqtech NA, Inc., a Delaware corporation; and | |
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| 2025-03-28 | 4) LiqTech Water Projects A/S, a Danish company | |
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| 2025-03-28 | 5) Liqtech Ceramics A/S, a Danish limited company | |
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| 2025-03-28 | 6) Liqtech Water A/S, a Danish limited company | |
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| 2025-03-28 | 7) Liqtech Plastic A/S, a Danish limited company | |
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| 2025-03-28 | 8) Liqtech Emission Control A/S, a Danish limited company; and | |
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| 2025-03-28 | 9) Nantong JiTRI LiqTech Green Energy Technology Co., Ltd., a Chinese limited company. | |
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| 2024-03-22 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2024-03-22 | 2) LiqTech International A/S, a Danish limited company | |
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| 2024-03-22 | 3) Liqtech NA, Inc., a Delaware corporation; and | |
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| 2024-03-22 | 4) LiqTech Water Projects A/S, a Danish company | |
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| 2024-03-22 | 5) Liqtech Ceramics A/S, a Danish limited company | |
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| 2024-03-22 | 6) Liqtech Water A/S, a Danish limited company | |
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| 2024-03-22 | 7) Liqtech Plastic A/S, a Danish limited company | |
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| 2024-03-22 | 8) Liqtech Emission Control A/S, a Danish limited company; and | |
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| 2024-03-22 | 9) Liqtech Environment Technologies (China) Co., Ltd., a Chinese limited company. | |
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| 2023-03-22 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2023-03-22 | 2) LiqTech International A/S, a Danish limited company | |
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| 2023-03-22 | 3) Liqtech NA, Inc., a Delaware corporation; and | |
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| 2023-03-22 | 4) LiqTech Water Projects A/S, a Danish company | |
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| 2023-03-22 | 5) Liqtech Ceramics A/S, a Danish limited company | |
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| 2023-03-22 | 6) Liqtech Water A/S, a Danish limited company | |
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| 2023-03-22 | 7) Liqtech Plastic A/S, a Danish limited company | |
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| 2023-03-22 | 8) Liqtech pte Ltd., a Singaporean limited company; and | |
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| 2023-03-22 | 9) Liqtech Emission Control A/S, a Danish limited company. | |
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| 2022-03-31 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2022-03-31 | 2) LiqTech International A/S, a Danish limited company | |
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| 2022-03-31 | 3) Liqtech NA, Inc., a Delaware corporation; and | |
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| 2022-03-31 | 4) LiqTech Water Projects A/S, a Danish company | |
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| 2022-03-31 | 5) Liqtech Ceramics A/S, a Danish limited company | |
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| 2022-03-31 | 6) Liqtech Water A/S, a Danish limited company | |
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| 2022-03-31 | 7) Liqtech Plastic A/S, a Danish limited company | |
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| 2022-03-31 | 8) Liqtech Germany GmBH, a German limited company | |
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| 2022-03-31 | 9) Liqtech pte Ltd., a Singapre limited company; and | |
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| 2022-03-31 | 10) Liqtech Emission Control A/S, a Danish limited company. | |
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| 2021-03-31 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2021-03-31 | 2) LiqTech International A/S, a Danish limited company | |
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| 2021-03-31 | 3) Liqtech NA, Inc., a Delaware corporation; and | |
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| 2021-03-31 | 4) LiqTech Water Projects A/S, a Danish company | |
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| 2021-03-31 | 5) Liqtech Ceramics A/S, a Danish limited company | |
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| 2021-03-31 | 6) Liqtech Water A/S, a Danish limited company | |
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| 2021-03-31 | 7) Liqtech Plastic A/S, a Danish limited company | |
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| 2021-03-31 | 8) Liqtech Germany GmBH, a German limited company | |
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| 2021-03-31 | 9) Liqtech pte Ltd., a Singapre limited company; and | |
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| 2021-03-31 | 10) Liqtech Emission Control A/S, a Danish limited company. | |
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| 2017-03-30 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2017-03-30 | 4) Liqtech NA, Inc., a Delaware corporation; and | |
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| 2017-03-30 | 5) LiqTech Systems A/S, a Danish company | |
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| 2016-03-23 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2016-03-23 | 4) Liqtech NA, Inc., a Delaware corporation; and | |
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| 2016-03-23 | 5) LiqTech Systems A/S, a Danish company | |
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| 2015-03-25 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2015-03-25 | 4) Liqtech NA, Inc., a Delaware corporation; and | |
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| 2015-03-25 | 5) Provital Solutions A/S, a Danish company | |
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| 2012-03-29 | 1) LiqTech USA, Inc., a Delaware corporation | |
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| 2012-03-29 | 4) Liqtech NA, Inc., a Delaware corporation. | |
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