| ROTORK 1905803 · TMA1140696 | Rotork Plc | 7 Machines9 Electronics37 Construction | Registered | 2022 |
| ROTORK 1788377 · TMA999093 · design | Rotork Plc | 6 Metal7 Machines9 Electronics+4 | Registered | 2018 |
| ROTORK 0253545 · TMA117911 | Rotork Plc | 7 Machines | Registered | 1960 |
| ROTOWORX 1433791 · TMA766005 | Gonderflex International Inc. | 7 Machines37 Construction | Registered | 2010 |
| READWORKS 1534940 · TMA843562 | READWORKS, INC. | 9 Electronics16 Paper35 Advertising+1 | Registered | 2013 |
| Rdruko 2223748 · TMA1248878 | an individual | 25 Clothing | Registered | 2024 |
| RETRIG 2165742 · TMA1198167 | PhaseBio Pharmaceuticals, Inc. | 5 Pharmaceuticals | Registered | 2023 |
| RADTRIKE 2163190 · TMA1278755 | Rad Power Bikes Inc. | 9 Electronics12 Vehicles | Registered | 2024 |
| REDRAGON 2151097 · TMA1197099 · design | Shenzhen World Link Trading Co. Ltd. | 9 Electronics | Registered | 2023 |
| READYWORKS 2140223 · TMA1238173 | Readyworks Inc. | 42 Science | Registered | 2024 |
| RETROSPEC 2133668 · TMA1175965 · design | Xander Bicycle Corporation | 9 Electronics12 Vehicles18 Leather+2 | Registered | 2023 |
| RETTERSPITZ 2111221 · TMA1282437 | Retterspitz GmbH & Co. KG | 3 Cosmetics5 Pharmaceuticals | Registered | 2025 |
| RETROCRAFT 2109398 · TMA1265253 | Young Manufacturing Company, Inc. | 19 Building | Registered | 2024 |
| RETROKID 2087684 · TMA1183858 · design | Retrokid Inc. | 25 Clothing35 Advertising | Registered | 2023 |
| RETROKID 2087575 · TMA1182667 | Retrokid Inc. | 25 Clothing35 Advertising | Registered | 2023 |
| RADTRAK3 2087285 · TMA1210639 | an individual | 9 Electronics | Registered | 2023 |
| RETTERSPITZ 2070016 · TMA1201211 | Retterspitz GmbH & Co. KG | 5 Pharmaceuticals10 Medical | Registered | 2023 |
| RETTERSPITZ 2070015 · TMA1199920 | Retterspitz GmbH & Co. KG | 3 Cosmetics4 Oils | Registered | 2023 |
| RETRACTIMAL 2067377 · TMA1180079 | 9421-0713 QUÉBEC INC. | 8 Hand | Registered | 2023 |
| RADORUS 2064948 · TMA1163434 | Mitsubishi Tanabe Pharma Corporation | 5 Pharmaceuticals | Registered | 2023 |
| ROOTREACHER 2063930 · TMA1172206 | Conair LLC | 8 Hand | Registered | 2023 |
| REDARC 2061089 · TMA1185943 · design | Redarc Electronics Pty Ltd | 9 Electronics42 Science | Registered | 2023 |
| RADURYGO 2058213 · TMA1217944 | Celgene Corporation | 5 Pharmaceuticals | Registered | 2024 |
| ROWTREK 2040447 · TMA1205755 | Basix International Inc. | 28 Toys | Registered | 2023 |
| READEREST 2018454 · TMA1114169 | RGA READEREST LLC | 9 Electronics | Registered | 2021 |