| 841 | Internet Hosting | Company Product |
| 842 | Internet Marketing Service | Company Product |
| 843 | Internet Service Provider | Company Product |
| 844 | Interpretation Service | Company Product |
| 845 | Interval Timers | Company Product |
| 846 | Interview | Company Product |
| 847 | Intimate Wash | Company Product |
| 848 | Intravenous Solution Manufacturers | Company Product |
| 849 | Intrinsic Safety | Company Product |
| 850 | Intrinsic Safety Interface Controls | Company Product |
| 851 | Intrinsically Safe System | Company Product |
| 852 | Intrinsically Safe Wireless Pressure Sensors | Company Product |
| 853 | Intruder Alarms | Company Product |
| 854 | Intrusion Detection Systems | Company Product |
| 855 | Intrusion Detectors | Company Product |
| 856 | Inventory Management | Company Product |
| 857 | Inventory Service | Company Product |
| 858 | Inventory Software | Company Product |
| 859 | Inverta Push | Company Product |
| 860 | Inverted Microscopes | Company Product |
| 861 | Inverter | Company Product |
| 862 | Inverter Air Compressors | Company Product |
| 863 | Inverter Batteries | Company Product |
| 864 | Inverter Control Cards | Company Product |
| 865 | Inverter Drawn Arc Stud Welder | Company Product |
| 866 | Inverter Drives | Company Product |
| 867 | Inverter Frequency Repair | Company Product |
| 868 | Inverter Generator | Company Product |
| 869 | Inverter Keypads | Company Product |
| 870 | Inverter Power Cards | Company Product |