| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 13 | |
| #2 | Japan | 12 | |
| #3 | Canada | 10 | |
| #4 | United States | 10 | |
| #5 | Germany | 9 | |
| #6 | Italy | 9 | |
| #7 | France | 8 | |
| #8 | Australia | 7 | |
| #9 | Switzerland | 7 | |
| #10 | Netherlands | 7 | |
| #11 | Argentina | 6 | |
| #12 | Brazil | 6 | |
| #13 | Austria | 5 | |
| #14 | Denmark | 5 | |
| #15 | Sweden | 5 | |
| #16 | Spain | 4 | |
| #17 | Portugal | 4 | |
| #18 | South Africa | 4 | |
| #19 | Hong Kong | 3 | |
| #20 | Finland | 2 | |
| #21 | Israel | 2 | |
| #22 | Mexico | 2 | |
| #23 | China | 1 | |
| #24 | Czechia | 1 | |
| #25 | Egypt | 1 | |
| #26 | Hungary | 1 | |
| #27 | India | 1 | |
| #28 | Republic of Korea | 1 | |
| #29 | Luxembourg | 1 | |
| #30 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Machines | |
| #3 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Chairs and beds | |
| #2 | Unspecified technologies | |
| #3 | Books |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ambasz Emilio | 65 |
| #2 | Ambasz E | 18 |
| #3 | Piretti Giancarlo | 10 |
| #4 | Piretti G | 4 |
| #5 | Emirio Amubasutsu | 3 |
| #6 | Emirio Amubazu | 3 |
| #7 | Emirio Amubaasu | 3 |
| #8 | Emilio Ambus | 1 |
| #9 | Emirio Amubasu | 1 |
| #10 | Piretti Giangarlo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| JPH10117874A | Freely adjustable chair | |
| US5108149A | Adjustable seating | |
| US4345733A | Mounting device for a chair seat | |
| US4333683A | Chair with automatically adjustable tilting back | |
| IT7849586D0 | Chair with adjustable backrest - has upper backrest section hinging on lower one which hinges on frame | |
| CA1106747A | Articulated double back for chairs | |
| US4157203A | Articulated double back for chairs | |
| US4131260A | Chair seat mount which permits the seat to tilt forward | |
| CA1076944A | Chair | |
| US4046422A | Chair | |
| US4043063A | Appointment calendar book | |
| CA1059892A | Chair | |
| US3982785A | Chair |