| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 3 | |
| #3 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Control | |
| #5 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Machines | |
| #3 | Unspecified technologies | |
| #4 | Cyclically operating valves | |
| #5 | Brushes | |
| #6 | Springs | |
| #7 | Servomotors | |
| #8 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rosenzweig Siegfried | 13 |
| #2 | Siegfried Rosenzweig | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1298796A | Valve-gear. | |
| US1239828A | Centrifugal governor for steam-engines. | |
| US1239827A | Steam-engine. | |
| US1239826A | Steam-engine. | |
| US1232093A | Steam-engine. | |
| US1198279A | Puppet-valve for engines. | |
| US1125724A | Engine-valve. | |
| US1125725A | Lubricating device for steam-engine valves. | |
| US1059567A | Valve-gear. | |
| US1047300A | Valve-gear. | |
| CA369567A | Vibration damper | |
| CA331237A | Structural unit | |
| CA454773A | Vibro isolator |