| HEMATRUE 1385154 · TMA741650 | Heska Corporation | 5 Pharmaceuticals10 Medical | Registered | 2009 |
| HUMITRON 0685298 · TMA404619 | Owner not shown | 1 Chemicals | Registered | 1992 |
| HUMATROPEN 1276874 · TMA707349 | ELI LILLY AND COMPANY | 10 Medical | Registered | 2008 |
| HEMATRATE 1817864 · TMA1040350 | Cook Medical Technologies LLC | 10 Medical | Registered | 2019 |
| HUMATROPE 0554972 · TMA347965 | ELI LILLY AND COMPANY | 5 Pharmaceuticals | Registered | 1988 |
| HENDERSON 1472177 · TMA870753 | Henderson Products, Inc. | 7 Machines12 Vehicles | Registered | 2014 |
| HENDERSON 1251017 · TMA708504 · design | Henderson Structured Settlements LP | 36 Finance | Registered | 2008 |
| HENDERSON 1178585 · TMA642703 | P.C. HENDERSON LIMITED | 6 Metal | Registered | 2005 |
| HENDERSON 0659326 · TMA389225 · design | P.C. HENDERSON LIMITED | 6 Metal | Registered | 1991 |
| HUMATERRA 2150342 | Humaterra Regen A.G. Inc. | 1 Chemicals40 Treatment44 Medical | Pending | 2021 |
| HONEYDROP 2290997 · TMA1273244 · design | Shenzhen Verdewell Technology Limited | 34 Tobacco | Registered | 2024 |
| HoneyDrop 2284103 · TMA1271701 | Shenzhen Verdewell Technology Limited | 34 Tobacco | Registered | 2024 |
| Hontry 2254383 · TMA1273094 | an individual | 9 Electronics | Registered | 2024 |
| Honiture 2234110 · TMA1255319 | WiMiUS Technologies CO. LTD | 7 Machines | Registered | 2024 |
| HUNTR 2211228 · TMA1279037 | Alaunos Therapeutics, Inc. | 42 Science | Registered | 2024 |
| HumateRX 2192236 · TMA1234828 | Custom Agricultural Intelligence Inc. | 32 Beer | Registered | 2024 |
| HUNTRESS 2183704 · TMA1213608 | Huntress Labs Incorporated | 9 Electronics42 Science | Registered | 2023 |
| HUMYDRY 2176425 · TMA1282627 | an individual | 11 Lighting21 Housewares | Registered | 2025 |
| HEMDURAYB 2171994 · TMA1213551 | PFIZER INC. | 5 Pharmaceuticals | Registered | 2023 |
| HUNTERRA 2163158 · TMA1219296 | Hunterra Real Estate Brokerage Inc. | 36 Finance | Registered | 2024 |
| HOMTRUCK 2156125 · TMA1237040 · design | ZHEJIANG GEELY HOLDING GROUP CO. LTD. | 12 Vehicles | Registered | 2024 |
| HUNDRED 2148394 · TMA1203086 | 8937001 Canada Inc. | 34 Tobacco | Registered | 2023 |
| HOMTRONICS 2124488 · TMA1187632 · design | Shenzhen Youjihui Technology Co. LTD | 20 Furniture | Registered | 2023 |
| Hyuniture 2100293 · TMA1173790 | Shenzhen Yinhe Network Co. Ltd. | 21 Housewares | Registered | 2023 |
| HomEternity 2077945 · TMA1178904 | Ningbo Aosi Supply Chain Management Co.Ltd. | 7 Machines | Registered | 2023 |