| 79346326 | HART | HARTVAPE OÜ | — |
| 90481185 | HART | Hart Tackle Company | 6721631 |
| 74042904 | HART | TECHTRONIC CORDLESS GP | 1657177 |
| 74089557 | HART | FIELDCOMM GROUP, INC. | 1658850 |
| 86047130 | HART | INC International Company | 4594312 |
| 88910469 | HART | Pure Safety Group, Inc. | — |
| 79274356 | HART | Hammersmith Nominees Pty Ltd | — |
| 79269770 | HART | HUARONG ARTS & CRAFTS PTE. LTD. | — |
| 85443396 | HART | Hart Associates, Inc. | 4269352 |
| 78247146 | HART | QAM CORPORATION | 3493788 |
| 79084318 | HART | SUMINISTROS EVIA, S.L. | — |
| 87428588 | HART | Humanitarian Aid Relief Team | — |
| 86916523 | HART | Tinnitus Treatment Solutions, LLC | — |
| 74550644 | HART | Sandhills, Inc. | — |
| 86783437 | HART | Pei Li | — |
| 77739394 | HART | QAM Corporation | 3722236 |
| 75861000 | HART | Takechi Project Co., Ltd. | — |
| 85745590 | HART | Hot and the Gang, Inc. | — |
| 80997420 | HART | Hart Products Corporation | 0997420 |
| 78872100 | HART | Hart Industries, Intl. Inc. | — |
| 78304433 | HART | BAE SYSTEMS INFORMATION SOLUTIONS INC. | 2979288 |
| 78105365 | HART | Marine Desalination Systems, L.L.C. | — |
| 77621201 | HART | Reinel, Horst | — |
| 76607885 | HART | Kurihara Corporation | — |
| 76365921 | HART | STILETTO TOOLS, INC. | — |
| 76249601 | HART | Applied Materials, Inc. | — |
| 75206968 | HART | Kabushiki Kaisha Takechi Project | — |
| 75163934 | HART | Hart Video Services, LLC | 2144137 |
| 75063848 | HART | Ischie, Wilbur N. | 2115188 |
| 75053695 | HART | Hartford Fire Insurance Company | 2022201 |
| 75000486 | HART | Ideas Put To Work, Inc. | — |
| 74689893 | HART | Hart Precision Technology Ltd. | 2093473 |
| 74630465 | HART | Ciba-Geigy Corporation | — |
| 74575215 | HART | Chargeurs Textiles | 2036361 |
| 74472250 | HART | JACK-POST CORPORATION | 1871071 |
| 74340557 | HART | CIBA-GEIGY CORPORATION | — |
| 74211882 | HART | Kerman, D. Ariel Dr. | — |
| 74211881 | HART | Kerman, D. Ariel Dr. | — |
| 74099080 | HART | Hart Industries | — |
| 74079425 | HART | White, James R. | — |
| 73718129 | HART | ROSEMOUNT INC. | 1610260 |
| 73682082 | HART | SCHIFFMACHER, SIEGFRIED | 1574437 |
| 73646944 | HART | HART ASSOCIATES, INC. | 1476374 |
| 73563969 | HART | JACK-POST CORPORATION | 1397416 |
| 73287801 | HART | HARTFELT, ARTHUR H. | — |
| 73229054 | HART | Hart Ski Mfg. Co., Inc. | 1154982 |
| 73213483 | HART | HART SYSTEMS, INC. | 1154156 |
| 72365331 | HART | REDINGTON COUNTERS, INC. | 0924226 |
| 72251724 | HART | H. W. HART MFG. CO. | 0854805 |
| 72251723 | HART | H. W. HART MFG. CO. | 0847130 |
