| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Vehicle parts | |
| #2 | Ladders | |
| #3 | Dredging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johansson Ingemar | 6 |
| #2 | Johansson I | 5 |
| Publication | Filing date | Title |
|---|---|---|
| EP0332646A1 | Ladder | |
| SE8703181D0 | Ladder | |
| SE8107740L | Attachment for a digging machine | |
| DE2915353A1 | External entry ladder for cab of working vehicle - has rungs mounted in elastic body, e.g. rubber, which deforms without damage if it meets obstacle |