| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 3 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | Denmark | 2 | |
| #5 | Finland | 2 | |
| #6 | France | 2 | |
| #7 | United Kingdom | 2 | |
| #8 | Norway | 2 | |
| #9 | United States | 2 | |
| #10 | Austria | 1 | |
| #11 | Australia | 1 | |
| #12 | Belgium | 1 | |
| #13 | Switzerland | 1 | |
| #14 | Spain | 1 | |
| #15 | Italy | 1 | |
| #16 | Japan | 1 | |
| #17 | Netherlands | 1 | |
| #18 | New Zealand | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Thermal processes | |
| #3 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Domestic heating systems | |
| #3 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Haeggqvist Ulw Lars Anders | 7 |
| #2 | Nordqvist Bert Sigurd | 5 |
| #3 | Johansson Lars Sigvard | 5 |
| #4 | Johansson L S | 3 |
| #5 | Johansson Lars S | 2 |
| #6 | Nordqvist B S | 2 |
| #7 | Nordqvist Bert S | 2 |
| #8 | Johansson L | 1 |
| #9 | Nordgvist B S | 1 |
| #10 | Fredriksson O | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB2044435A | Control units for central heating systems | |
| FI260574A | Shuntaggregat |