| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 11 | |
| #2 | EPO (European Patent Office) | 8 | |
| #3 | United States | 7 | |
| #4 | Japan | 5 | |
| #5 | Australia | 3 | |
| #6 | Canada | 3 | |
| #7 | Germany | 3 | |
| #8 | United Kingdom | 3 | |
| #9 | Spain | 2 | |
| #10 | Finland | 2 | |
| #11 | France | 2 | |
| #12 | Netherlands | 2 | |
| #13 | WIPO (World Intellectual Property Organization) | 2 | |
| #14 | Brazil | 1 | |
| #15 | China | 1 | |
| #16 | Denmark | 1 | |
| #17 | Hong Kong | 1 | |
| #18 | India | 1 | |
| #19 | Italy | 1 | |
| #20 | Kenya | 1 | |
| #21 | Republic of Korea | 1 | |
| #22 | Norway | 1 | |
| #23 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Civil engineering | |
| #3 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Transport or storage devices | |
| #2 | Safety devices | |
| #3 | Emergency protective circuit arrangements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tingskog Karl August Lennart | 10 |
| #2 | Tingskog K A L | 7 |
| #3 | Tingskog Karl A L | 5 |
| #4 | Karuru Augusuto Renaruto Teing | 4 |
| #5 | Svensson Kennet | 4 |
| #6 | Sandberg Knut Arne | 2 |
| #7 | Ekelund Ake Allan | 2 |
| #8 | Eklof K V E | 2 |
| #9 | Ekelund Ake | 2 |
| #10 | Tingskog L | 2 |
| Publication | Filing date | Title |
|---|---|---|
| EP0211927A1 | Screw conveyor. | |
| EP0176490A1 | Loading device for a belt conveyor | |
| EP0130954A1 | Screw conveyor for explosive granular material | |
| EP0129525A1 | Hoisting installation in mining | |
| EP0122240A1 | Sealing device for relatively rotating surfaces in a conveyor | |
| WO8503691A1 | Arrangement in screw conveyers for bulk goods | |
| AU4943179A | Final unloading apparatus | |
| CA1127584A | Final unloading apparatus | |
| US4234075A | Apparatus for sealing a connection between two mutually shiftable components | |
| DE2914553A1 | SYSTEM FOR UNLOADING BULK GOODS FROM A STORAGE ROOM | |
| GB1563142A | Apparatuses in inclined interconnected conveyors | |
| GB1490830A | Apparatuses for unloading particulate material especially from ships |