| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 7 | |
| #2 | United States | 4 | |
| #3 | Germany | 2 | |
| #4 | Belgium | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Unspecified technologies | |
| #3 | Crop agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Launder Richard L | 11 |
| #2 | Launder Ernie L | 3 |
| #3 | Peveler France D | 2 |
| #4 | Lloyd Launder Richard | 2 |
| #5 | Dearl Peveler France | 2 |
| #6 | Lloyd Launder Ernie | 1 |
| #7 | Launder R L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4611418A | Locking mechanism for earth excavation teeth | |
| US4576239A | Scarifier tooth assembly | |
| US4516340A | Attachment assembly for excavation teeth | |
| CA943997A | Dual digging tooth retainer pins | |
| US3277592A | Reinforced replaceable tooth for digging machines | |
| CA785661A | Reinforced replaceable tooth for digging machines | |
| CA822884A | Folding slope grader for bulldozers | |
| CA822885A | Slope grader for bulldozers |