| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Computer technology | |
| #2 | Electrical machinery and energy | |
| #3 | Textiles and paper | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Electric digital data processing | |
| #2 | Electric switches | |
| #3 | Typewriters | |
| #4 | Office furniture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hargreaves William R | 14 |
| #2 | Lunde Shirley A | 7 |
| #3 | Buus Carsten | 6 |
| #4 | Biggs Jonathan H | 4 |
| #5 | Farrand William P | 4 |
| #6 | Ando Mark | 3 |
| #7 | Hargreaves William Rudolph | 3 |
| #8 | Beecher David | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2015331697A1 | Driverless programmable computer input devices and related methods | |
| US2014037355A1 | Support accessory for split keyboard | |
| US2013183074A1 | Computer keyboard with first and second modules having adjustable angle | |
| US7828489B1 | Keyboard with a pair of pivotable keying modules | |
| US6005496A | Ergonomic keyboard apparatus | |
| AU5017393A | Keyboard and method for producing | |
| US5689253A | Ergonomic keyboard apparatus | |
| CA2108281A1 | Ergonomic keyboard apparatus |