| 99699167 | RI REFRIGERANTS INC. A DIVISION OF HUDSON TECHNOLOGIES | HUDSON TECHNOLOGIES INC. | 8483693 |
| 99699203 | RI | HUDSON TECHNOLOGIES INC. | 8469630 |
| 74682909 | ZUGIBEAST | HUDSON TECHNOLOGIES, INC. | 1985422 |
| 98887841 | Serial No. 98887841 | Hudson Technologies, Inc. | — |
| 97155671 | GWP SCAN | Hudson Technologies, Inc. | — |
| 97155661 | CYLINDERWATCH | Hudson Technologies, Inc. | — |
| 97155761 | CYLINDER CODE TECHNOLOGY | Hudson Technologies, Inc. | — |
| 97155755 | DIRECT SCAN TECHNOLOGY | Hudson Technologies, Inc. | — |
| 97155723 | QUICKSCAN INTELLIGENCE | Hudson Technologies, Inc. | — |
| 97155713 | CYLINDER QUICKSCAN | Hudson Technologies, Inc. | — |
| 99372122 | EMERALD REFRIGERANTS RECLAIMED IN THE USA | HUDSON TECHNOLOGIES INC. | 8211797 |
| 97155736 | QR CODE TRACKER | Hudson Technologies, Inc. | — |
| 78591413 | CHILLSMART | HUDSON TECHNOLOGIES, INC. | 3184719 |
| 97155749 | QR CYLINDER INTELLIGENCE | Hudson Technologies, Inc. | — |
| 97155739 | QR CODE INTELLIGENCE | Hudson Technologies, Inc. | — |
| 97155731 | QR INTELLIGENCE CYLINDER | Hudson Technologies, Inc. | — |
| 87558718 | COLDPACK | HUDSON TECHNOLOGIES INC. | 5716535 |
| 97155683 | CYLINDER RAPID SCAN | Hudson Technologies, Inc. | — |
| 97155706 | QUICKSCAN | Hudson Technologies, Inc. | — |
| 97155695 | RAPID CYLINDER SCAN | Hudson Technologies, Inc. | — |
| 97155653 | Serial No. 97155653 | Hudson Technologies, Inc. | — |
| 97155640 | Serial No. 97155640 | Hudson Technologies, Inc. | — |
| 97155621 | Serial No. 97155621 | Hudson Technologies, Inc. | — |
| 97155605 | Serial No. 97155605 | Hudson Technologies, Inc. | — |
| 97155726 | QUICKSCAN TECHNOLOGY | Hudson Technologies, Inc. | — |
| 98887496 | Serial No. 98887496 | Hudson Technologies, Inc. | 7965393 |
| 98887469 | CLEAN EXCHANGE | Hudson Technologies, Inc. | 7965392 |
| 98887324 | CLEAN EXCHANGE | Hudson Technologies, Inc. | 7965386 |
| 98887975 | HT | Hudson Technologies, Inc. | 7917821 |
| 98887516 | CLEAN EXCHANGE | Hudson Technologies, Inc. | 7917797 |
| 97653734 | HUDSON TECHNOLOGIES RECLAIMING THE FUTURE TOGETHER. | Hudson Technologies, Inc. | 7240410 |
| 97155767 | QR INTELLIGENCE | Hudson Technologies, Inc. | — |
| 88955968 | EMERALD | HUDSON TECHNOLOGIES INC. | 7037492 |
| 86305973 | SMARTENERGY OPS OPERATIONS / PERFORMANCE / SERVICE | HUDSON TECHNOLOGIES INC. | 4951991 |
| 86305954 | SMARTENERGY OPS | HUDSON TECHNOLOGIES INC. | 4951990 |
| 85428775 | AMERI-PURE | HUDSON TECHNOLOGIES INC | 4552124 |
| 85041598 | CLEAN EXCHANGE | Hudson Technologies, Inc. | 4187266 |
| 77638497 | FLUID CHEMISTRY | Hudson Technologies, Inc. | 3788857 |
| 74677360 | HUDSON TECHNOLOGIES, INC. | HUDSON TECHNOLOGIES, INC. | 1969986 |
| 97155744 | QR CODE CYLINDER | Hudson Technologies, Inc. | — |
| 75253240 | GLACIER | HUDSON TECHNOLOGIES, INC. | 2227148 |
| 74682906 | HTI | HUDSON TECHNOLOGIES, INC. | 1970063 |