| 841 | Internal Honing Machines | Company Product |
| 842 | Internal Paintings | Company Product |
| 843 | Internal Sensor | Company Product |
| 844 | Internal Telephone Wiring For Telecommunications | Company Product |
| 845 | International | Company Product |
| 846 | International Procurement Office | Company Product |
| 847 | International Restaurants | Company Product |
| 848 | International School | Company Product |
| 849 | Internet Hosting | Company Product |
| 850 | Internet Marketing Service | Company Product |
| 851 | Internet Service Provider | Company Product |
| 852 | Interpretation Service | Company Product |
| 853 | Interval Timers | Company Product |
| 854 | Interview | Company Product |
| 855 | Intimate Wash | Company Product |
| 856 | Intravenous Solution Manufacturers | Company Product |
| 857 | Intrinsic Safety | Company Product |
| 858 | Intrinsic Safety Interface Controls | Company Product |
| 859 | Intrinsically Safe System | Company Product |
| 860 | Intrinsically Safe Wireless Pressure Sensors | Company Product |
| 861 | Intruder Alarms | Company Product |
| 862 | Intrusion Detection Systems | Company Product |
| 863 | Intrusion Detectors | Company Product |
| 864 | Inventory Management | Company Product |
| 865 | Inventory Service | Company Product |
| 866 | Inventory Software | Company Product |
| 867 | Inverta Push | Company Product |
| 868 | Inverted Microscopes | Company Product |
| 869 | Inverter | Company Product |
| 870 | Inverter Air Compressors | Company Product |