| 86376934 | NATCO | T. Choithram International S.A. | 5205288 |
| 88055274 | NATCO | T. Choithram International S.A. | 6866552 |
| 97920925 | NATCO | Natco Pharma USA LLC | 7405840 |
| 74115858 | NATCO | CAMERON INTERNATIONAL CORPORATION | 1686150 |
| 97068781 | NATCO | Accent Building Materials Holdings LLC | — |
| 75033800 | NATCO | National Combustion Co. Inc. | 2188712 |
| 75247741 | NATCO | NATCO COMMUNICATIONS, INC. | 2120066 |
| 78749930 | NATCO | FITZ ROY HOLDINGS | 3176630 |
| 74705849 | NATCO | Northwest Airlines, Inc. | 1976874 |
| 75195734 | NATCO | NORTH AMERICAN TEXTILE COMPANY | 2095308 |
| 86861031 | NATCO | Natali, David | — |
| 77561004 | NATCO | North American Transport Concepts, Inc. | 3622227 |
| 73634434 | NATCO | T. CHOITHRAM (INTERNATIONAL) LIMITED | — |
| 73325159 | NATCO | Natco Realty Corporation | 1241425 |
| 73303058 | NATCO | National Automatic Tool Company, Inc. | 1217310 |
| 73033065 | NATCO | NATIONAL CAR RENTAL SYSTEM, INC. | 1024884 |
| 72052007 | NATCO | NATIONAL AUTOMATIC TOOL COMPANY, INC. | 0670908 |
| 72000904 | NATCO | NATIONAL AUTOMATIC TOOL COMPANY, INC. | 0634574 |
| 72000903 | NATCO | NATIONAL AUTOMATIC TOOL COMPANY, INC. | 0634573 |
| 71651119 | NATCO | ATLANTIC METALS CORPORATION | 0590049 |
| 71570062 | NATCO | NATIONAL TEA CO. | 0541366 |
| 71544754 | NATCO | NATIONAL TEA CO. | 0511666 |
| 71543516 | NATCO | NATIONAL WATERPROOFING COMPANY | 0507018 |
| 71521604 | NATCO | NATIONAL TEA CO. | 0440984 |
| 71516994 | NATCO | NATIONAL TEA CO. | 0438019 |
| 71516562 | NATCO | NATIONAL TEA CO. | 0441964 |
| 71513192 | NATCO | NATIONAL TEA CO. | 0440955 |
| 71301994 | NATCO | NATIONAL BATTERY COMPANY | 0275842 |
| 71063418 | NATCO | NATCO/CARLTON, L.P. | 0089486 |