| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 6 | |
| #2 | Italy | 5 | |
| #3 | Australia | 4 | |
| #4 | Brazil | 3 | |
| #5 | Argentina | 2 | |
| #6 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Unspecified technologies | |
| #3 | Shaping of plastics | |
| #4 | Certain plastics | |
| #5 | Unspecified technologies | |
| #6 | Milling | |
| #7 | Making metal sheets | |
| #8 | Structural elements | |
| #9 | Fillers | |
| #10 | Rolling metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schwarz W | 5 |
| #2 | Schwarz Walter | 4 |
| Publication | Filing date | Title |
|---|---|---|
| GB1480904A | Electrically insulating pipe coupling | |
| GB1472754A | Pipe joint and process of manufacturing the same | |
| US3845907A | Apparatus for comminuting trash | |
| US3835684A | Method and an apparatus for making tubes | |
| GB1355897A | Electrically insulating tube coupling | |
| GB1396119A | Pipe joint | |
| GB1332075A | Concrete reinforcement rods |