| 811 | Interlocking Boxes | Company Product |
| 812 | Interlocking Bricks | Company Product |
| 813 | Interlocking Device Valves | Company Product |
| 814 | Intermediate Metal Conduit | Company Product |
| 815 | Internal Combustion Engine Oil | Company Product |
| 816 | Internal Combustion Forklift | Company Product |
| 817 | Internal Combustion Trucks | Company Product |
| 818 | Internal Gear Pumps | Company Product |
| 819 | Internal Gears | Company Product |
| 820 | Internal Grinder | Company Product |
| 821 | Internal Grinding Machines | Company Product |
| 822 | Internal Honing Machines | Company Product |
| 823 | Internal Paintings | Company Product |
| 824 | Internal Sensor | Company Product |
| 825 | Internal Telephone Wiring For Telecommunications | Company Product |
| 826 | International | Company Product |
| 827 | International Procurement Office | Company Product |
| 828 | International Restaurants | Company Product |
| 829 | International School | Company Product |
| 830 | Internet Hosting | Company Product |
| 831 | Internet Marketing Service | Company Product |
| 832 | Internet Service Provider | Company Product |
| 833 | Interpretation Service | Company Product |
| 834 | Interval Timers | Company Product |
| 835 | Interview | Company Product |
| 836 | Intimate Wash | Company Product |
| 837 | Intravenous Solution Manufacturers | Company Product |
| 838 | Intrinsic Safety | Company Product |
| 839 | Intrinsic Safety Interface Controls | Company Product |
| 840 | Intrinsically Safe System | Company Product |