| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 21 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Consumer goods | |
| #3 | Measurement | |
| #4 | Thermal processes | |
| #5 | Optics | |
| #6 | Chemical engineering | |
| #7 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Hairstyling and cosmetic | |
| #2 | Unspecified technologies | |
| #3 | Analysing materials | |
| #4 | Unspecified technologies | |
| #5 | Cleaning heat-exchanger internal surfaces | |
| #6 | Mixing | |
| #7 | Auxiliaries on vessels | |
| #8 | Air-conditioning | |
| #9 | Optical systems | |
| #10 | Steam generation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hudson Wager Robert | 21 |
| Publication | Filing date | Title |
|---|---|---|
| US2699799A | Scavenging-air valve for soot blowers | |
| US2595377A | Soot blower head and valve mechanism therefor | |
| US2473231A | Adjustable mirror observation unit for smoke indicators | |
| US2408495A | Smoke inspection device | |
| US2444211A | Soot blower seal | |
| US2393078A | Inverted vent check valve | |
| US2291776A | Combined smoke observation device and photoelectric indicating means | |
| US2185450A | Soot blower seal | |
| US2118716A | Smoke inspection device | |
| US1889164A | Lather-forming means | |
| US1758339A | Air register | |
| US1798346A | Lather-forming device | |
| US1774859A | Combustion baffle | |
| US1798345A | Lather-forming device | |
| US1759248A | Lather-forming device | |
| US1708987A | Smoke-inspection device | |
| US1708986A | Smoke-inspecting device | |
| US1554149A | Lather-forming process | |
| US1554148A | Lather-forming device | |
| US1554147A | Lather-forming device |