| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 37 | |
| #2 | Canada | 4 | |
| #3 | United Kingdom | 2 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Measurement | |
| #3 | Machines | |
| #4 | Thermal processes | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Measuring volume | |
| #3 | Unspecified technologies | |
| #4 | Steam traps | |
| #5 | Venting or aerating devices | |
| #6 | Feeding fuel to combustion device | |
| #7 | Weighing | |
| #8 | Cosmonautics | |
| #9 | Measuring force, work and fluid pressure | |
| #10 | Steam generation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Robert Hall | 11 |
| #2 | Walsh John D | 8 |
| #3 | Barnes Eugene L | 5 |
| #4 | Hall Robert | 4 |
| #5 | Dunn Frederick R | 2 |
| #6 | Gysling Manuel H | 2 |
| #7 | Walsh John Daniel | 1 |
| #8 | Babcock Henry J | 1 |
| #9 | Rhodes Harold R | 1 |
| #10 | Barnes Fugene L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB709763A | Improvements in or relating to expansion joints for pipes and the like | |
| US2481472A | Packless expansion joint | |
| GB631774A | Rotary liquid measuring meters | |
| US2467259A | Fluid meter | |
| US2319543A | Continuous service expansion joint | |
| US2323179A | Packed type expansion joint | |
| US2117056A | Steam trap | |
| US2103981A | Expansion joint structure | |
| US2081867A | Steam main construction | |
| US2044430A | Expansion joint | |
| US2097401A | Steam trap | |
| US2018613A | Flexible seal expansion joint | |
| US1992612A | Expansion joint | |
| US2056101A | Speed changing mechanism | |
| US2039246A | Meter | |
| US1926003A | Expansion joint | |
| US1819553A | Retaining device for pipe coverings | |
| US1931465A | Conduit | |
| US1852516A | Expansion joint | |
| US1649653A | Meter |