| US D270634 S | Headphones | Sep-1983 | D14/205 | |
| US D278234 S | Headphone | Apr-1985 | D14/205 | |
| US 4646872 A | Earphone | Mar-1987 | 181/129 | [+10] |
| US 4893344 A | Headset having a post auricle mount and arranged to be worn on a person's outer ear | Jan-1990 | 381/381 | |
| US D311007 S | Earphone | Oct-1990 | D14/205 | |
| US D316550 S | Combined earphone and receiver | Apr-1991 | D14/205. X | |
| US D318670 S | Combined earphone and remote controller | Jul-1991 | D14/205 | |
| US D318864 S | Earphone | Aug-1991 | D14/205 | |
| US D318865 S | Earphone | Aug-1991 | D14/205 | |
| US D334043 S | Combined earphone and remote controller | Mar-1993 | D14/223 | |
| US D391572 S | Radio with earphones | Mar-1998 | D14/192 | |
| US D430139 S | Portable handsfree system | Aug-2000 | D14/205 | |
| US 6122369 A | Communication process device and method therefor | Sep-2000 | 379/430. X |