| HEARTMATE 1116284 · TMA623303 | TC1 LLC | 10 Medical | Registered | 2004 |
| HEARTMATE 1115138 · TMA623061 · design | TC1 LLC | 10 Medical | Registered | 2004 |
| Heartmag 2153699 · TMA1217406 | NEW ROOTS HERBAL INC. | 5 Pharmaceuticals | Registered | 2024 |
| HARTMANN 1145276 · TMA614497 · design | Owner not shown | 7 Machines13 Firearms16 Paper+1 | Registered | 2004 |
| HARTMAN 0523240 · TMA308912 · design | an individual | 20 Furniture | Registered | 1985 |
| HARTMANN 0158375 · TMDA56625 | Owner not shown | 18 Leather | Registered | 1933 |
| herdmate 2361240 | PS INNOVATIONS INC. | 24 Textiles25 Clothing28 Toys | Pending | 2024 |
| HARTMANN 2277363 · design | an individual | 1 Chemicals3 Cosmetics5 Pharmaceuticals+11 | Pending | 2023 |
| HARDMADE 2234023 · TMA1256692 | an individual | 32 Beer33 Wine | Registered | 2024 |
| HEARTINI 1839848 · TMA1019749 | STRAUSS NATURALS LTD. | 5 Pharmaceuticals | Registered | 2019 |
| HEARTUNES 1796093 · TMA1046474 | an individual | 9 Electronics | Registered | 2019 |
| HARDMAN 1009134 · TMA542399 | Royal Adhesives and Sealants, LLC (a Delaware limited liability company) | 1 Chemicals3 Cosmetics5 Pharmaceuticals+1 | Registered | 2001 |
| HEARTNICE 2288275 | Qingdao Feiziqi Network Technology Co. Ltd. | 25 Clothing | Pending | 2023 |
| HARTOMPET 2248475 · TMA1267349 | Shenzhen Beast Hardware Tools Wholesale Co. Ltd | 31 Fresh | Registered | 2024 |
| HARTENZUS 2134177 · TMA1213101 | Merck Sharp & Dohme LLC | 5 Pharmaceuticals | Registered | 2023 |
| HIREDMAN 1929481 · TMA1125863 | Custom Agricultural Intelligence Inc. | 9 Electronics | Registered | 2022 |
| HORTENSIA 1840289 · TMA1069440 | an individual | 14 Jewellery | Registered | 2020 |
| HORTINNO 1822706 · TMA1016989 | Owner not shown | 31 Fresh | Registered | 2019 |
| HAIRTAMIN 1816549 · TMA1018799 | Hairtamin LLC LIMITED LIABILITY COMPANY CALIFORNIA | 5 Pharmaceuticals35 Advertising | Registered | 2019 |
| HERITANCE 1809937 · TMA1000760 | Palm Wine Holdings, LLC | 33 Wine | Registered | 2018 |
| HARDWIN 1796606 · TMA1041114 | Delta Faucet Company | 11 Lighting | Registered | 2019 |
| HARRITON 1655905 · TMA958079 | Broder Bros. Co. | 18 Leather25 Clothing | Registered | 2016 |
| HORTONWORKS 1618945 · TMA940749 · design | Hortonworks, Inc. | 9 Electronics41 Education42 Science | Registered | 2016 |
| HORTONWORKS 1618944 · TMA913611 | Hortonworks, Inc. | 9 Electronics41 Education42 Science | Registered | 2015 |
| HAIRTENSITY 1582075 · TMA855784 | Sally Beauty International, Inc. | 26 Sewing | Registered | 2013 |