| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | United States | 4 | |
| #3 | Canada | 3 | |
| #4 | Germany | 2 | |
| #5 | France | 2 | |
| #6 | Belgium | 1 | |
| #7 | Italy | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Thermal processes | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Pistons and sealings | |
| #3 | Unspecified technologies | |
| #4 | Testing of structures | |
| #5 | Heat-exchange device details | |
| #6 | Machines for making railways | |
| #7 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hallwood H | 3 |
| #2 | Eaton Burton Emery | 2 |
| #3 | Hallwood Harry | 2 |
| #4 | Rachford John G | 1 |
| #5 | Hirschhorn Harry J | 1 |
| #6 | Eaton Burton E | 1 |
| #7 | Sabala Ronald A | 1 |
| #8 | Unger David | 1 |
| #9 | Unger D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3812886A | Cryogenic insulation | |
| CA926443A | Inflatable temporary field joint | |
| CA929721A | Utility module for apartment-type dwellings | |
| US3465783A | Branch conduit connection for fluid distribution systems | |
| US3433943A | Railroad switch heater | |
| GB1101493A | Conduit system comprising a conduit section and method of detecting leaks in a conduit section | |
| GB989844A | Slip ring spacer for insulated conduit systems | |
| US3184958A | Conduit system |