| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 36 | |
| #2 | Canada | 22 | |
| #3 | United Kingdom | 5 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Machine tools | |
| #5 | Textiles and paper | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Guiding railway traffic | |
| #2 | Explosive charges | |
| #3 | Unspecified technologies | |
| #4 | Making wound articles | |
| #5 | Packaging | |
| #6 | Punching metal | |
| #7 | Doors and windows | |
| #8 | Indexing scheme relating to hinges | |
| #9 | Unspecified technologies | |
| #10 | Railway equipment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dutcher Frank | 63 |
| #2 | Peter Philip | 3 |
| #3 | Dutcher Warren | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA195030A | Railway signal torpedo | |
| CA195032A | Railway signal torpedo | |
| CA184883A | Railway signal torpedo | |
| CA178409A | Railway signal torpedo | |
| CA178407A | Railway signal torpedo | |
| US1281312A | Window construction. | |
| CA169613A | Railway torpedo | |
| CA166260A | Railway signal torpedo | |
| CA166258A | Railway signal torpedo | |
| CA166257A | Railway signal torpedo | |
| CA166256A | Railway signal torpedo | |
| CA161738A | Railway signal torpedo | |
| CA161737A | Railway signal torpedo | |
| CA161739A | Railway signal torpedo | |
| CA161896A | Train order deliverer | |
| CA152694A | Railway signal torpedo | |
| GB191317294A | Improvements in Railway Signal Detonators. | |
| CA144015A | Railway signal torpedo | |
| CA150218A | Railway signal torpedo | |
| CA153297A | Fusee for railway signals |