| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 4 | |
| #3 | Belgium | 2 | |
| #4 | Switzerland | 2 | |
| #5 | Germany | 2 | |
| #6 | France | 2 | |
| #7 | United Kingdom | 2 | |
| #8 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Construction of roads | |
| #3 | Foundations and excavations | |
| #4 | Vehicle connections |
| # | Name | Total Patents |
|---|---|---|
| #1 | Layton Jack D | 10 |
| #2 | Layton J | 4 |
| #3 | Layton Jack Douglas | 3 |
| #4 | Layton J D | 2 |
| #5 | Jack Douglas Layton | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3787135A | Vehicle and vibrating compactor combination | |
| US3776318A | Earth working machine including scraper blade means | |
| GB1322673A | Earth grading vehicle | |
| US3704754A | Articulated vehicle having an adjustable grader blade thereon | |
| US3648871A | Vehicle loader | |
| US3330188A | Road widener | |
| US3300234A | Apparatus for attaching trailing and lead vehicles | |
| US3286606A | Heated screed assembly | |
| US3288041A | Multiple-use paver | |
| US3275342A | Mechanism for attaching trailing and lead vehicles | |
| US3237539A | Lift mechanism | |
| CA803209A | Road widener |