| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 7 | |
| #2 | Belgium | 2 | |
| #3 | Canada | 2 | |
| #4 | Germany | 2 | |
| #5 | Spain | 2 | |
| #6 | United States | 2 | |
| #7 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Agriculture | |
| #3 | Machines | |
| #4 | Civil engineering | |
| #5 | Electrical machinery and energy | |
| #6 | Telecommunications | |
| #7 | Basic communication technologies | |
| #8 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Planting | |
| #3 | Unspecified technologies | |
| #4 | Pipe-line systems | |
| #5 | Telephonic communication | |
| #6 | Structural elements | |
| #7 | Earth drilling | |
| #8 | Capacitors and switching devices | |
| #9 | Testing of structures | |
| #10 | Resonators |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gerard F Wittgenstein | 6 |
| #2 | Wittgenstein Gerard F | 6 |
| #3 | Wittgenstein Gerard-F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA968725A | Installations de securite contre les fuites de pipelines | |
| US3173271A | Underwater pipeline installation | |
| ES205495A1 | Improvements in the construction of seeding machines (Machine-translation by Google Translate, not legally binding) | |
| US2753819A | Seed-sowing machines | |
| ES201760A1 | A procedure and machine for the construction of continuous channels of armed concrete (Machine-translation by Google Translate, not legally binding) | |
| CA758327A | Method and installation for laying under-water pipe lines |