| 79457036 | PRI | PRI Association | — |
| 90354890 | PRI | MAGNUSSEN HOME FURNISHINGS, INC. | 6478071 |
| 97217320 | PRI | POSTURAL RESTORATION INSTITUTE, INC. | 6984198 |
| 78243365 | PRI | BINKS US, LLC | 2834579 |
| 88320634 | PRI | The Lee Company | 5965170 |
| 86579298 | PRI | Matthew S. Lief MD PA | 4970196 |
| 76464206 | PRI | Printing Research, Inc. | 2839615 |
| 78602323 | PRI | POLYMER RESOURCES INTERNATIONAL (USA), INC. | 3071120 |
| 86870203 | PRI | Public Radio International, Inc. | 5030687 |
| 85440634 | PRI | Pipe Reconstruction, Inc. | 4197243 |
| 85623278 | PRI | PRI CONSTRUCTION MATERIALS TECHNOLOGIES, LLC | 4300484 |
| 88697481 | PRI | Performance Review Institute, Inc. | 6719379 |
| 90473583 | PRI | PRIVATE LABEL NYC, LLC. | — |
| 76154144 | PRI | APA - The Engineered Wood Association | 2494400 |
| 77889788 | PRI | Precision Reflex, Inc | 3821519 |
| 88569931 | PRI | Profit Resources, Inc. | — |
| 74642877 | PRI | PATENT RESOURCES GROUP, INC. | 1965354 |
| 79050283 | PRI | Ingeborg N. Bosch | 3557822 |
| 77642371 | PRI | Precision Reflex, Inc. | 3654266 |
| 75102343 | PRI | PRI CONSTRUCTION MATERIALS TECHNOLOGIES, LLC | 2155438 |
| 78949257 | PRI | Project Resources Incorporated | 3253632 |
| 76175214 | PRI | HUMAN LIFE INTERNATIONAL | — |
| 76175213 | PRI | HUMAN LIFE INTERNATIONAL | — |
| 76175211 | PRI | HUMAN LIFE INTERNATIONAL | — |
| 75319966 | PRI | Smith, Michael M. | — |
| 78454137 | PRI | Zhou, Quan | 3081749 |
| 76489960 | PRI | Performance Review Institute | 2797341 |
| 85925497 | PRI | Protection Resources International LLC | — |
| 78948389 | PRI | Provenzano Resources, Inc. | 3255980 |
| 78808380 | PRI | Taylor, Albert, Jr. | — |
| 78039878 | PRI | Alberta Research Council Inc. | 2573811 |
| 77639916 | PRI | Pace Runners, Inc. | 3654188 |
| 76674307 | PRI | Brian Rigby Auctioneers, LLC | 3346715 |
| 76129682 | PRI | POTOMAC RESEARCH INTERNATIONAL, INC. | 2606747 |
| 75748073 | PRI | Professional Radiology Inc | 2345598 |
| 75710987 | PRI | Printing Research, Inc. | 2443835 |
| 75432337 | PRI | Perceptual Robotics, Inc. | — |
| 75365910 | PRI | Packaging Research, Inc. | — |
| 75289091 | PRI | APA - THE ENGINEERED WOOD ASSOCIATION | — |
| 74722748 | PRI | Prevention Research Institute, Inc. | 2001210 |
| 74642092 | PRI | PATENT RESOURCES GROUP, INC. | — |
| 74328063 | PRI | W. W. GRAINGER, INC. | 1839811 |
| 74156079 | PRI | PERFORMANCE REVIEW INSTITUTE | 1688235 |
| 74138363 | PRI | LARHETTE MANIN INSURANCE AGENCY INC. | 1699399 |
| 74057523 | PRI | Physical Research, Inc. | — |
| 74054416 | PRI | Physical Research, Inc. | — |
| 73786177 | PRI | DECISION POTOMAC SUBSIDIARY, INC. | 1610737 |
| 73216385 | PRI | Professional Research, Inc. | 1144017 |
