| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 21 | |
| #2 | Canada | 2 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Transport | |
| #3 | Packaging and shipping | |
| #4 | Machines | |
| #5 | Mechanical elements | |
| #6 | Control |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume | |
| #2 | Analysing materials | |
| #3 | Measuring force, work and fluid pressure | |
| #4 | Vehicle transmission mounting | |
| #5 | Time-interval measuring | |
| #6 | Unspecified technologies | |
| #7 | Pipes | |
| #8 | Packaging | |
| #9 | Money sorting | |
| #10 | Containers for goods storage |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mapel Lewis A | 15 |
| #2 | Bordeaux Foster J | 2 |
| #3 | Whitman Raymond L | 2 |
| #4 | Casgrain Louis A | 2 |
| #5 | Mapel Lewis Alonzo | 2 |
| #6 | Frederick Ray | 1 |
| #7 | Nivling Walter A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2194527A | Apparatus for determining the lubricating values of oils | |
| US2020560A | Indicating instrument | |
| US2194605A | Apparatus for indicating viscosity | |
| US1945822A | Method and apparatus for measuring viscosity | |
| US1672983A | Device for dispensing liquids | |
| US1798692A | Diaphragm pressure gauge | |
| US1658930A | Fitting for indicating devices | |
| US1465768A | Indicating device | |
| US1635374A | Liquid-level indicator | |
| US1633673A | Liquid-level gauge | |
| US1445842A | Equipment for indicating instruments | |
| US1519792A | Liquid-level indicator | |
| US1633672A | Indicating instrument | |
| US1570691A | Indicating instrument | |
| US1528068A | Drain valve | |
| US1445841A | Controlling device | |
| US1388278A | Signal mechanism | |
| US1174473A | Coupling. | |
| US1118472A | Coin-handling machine. | |
| US1128219A | Starter for internal-combustion engines. |