| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 18 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement | |
| #3 | Basic materials chemistry | |
| #4 | Chemical engineering | |
| #5 | Basic communication technologies | |
| #6 | Organic fine chemistry | |
| #7 | Packaging and shipping | |
| #8 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Analysing materials | |
| #3 | Lubricating compositions | |
| #4 | Separation | |
| #5 | Special lubricating compositions | |
| #6 | Radio navigation | |
| #7 | Ships | |
| #8 | Transferring liquids | |
| #9 | Heterocyclic compounds | |
| #10 | Amplification control |
| Publication | Filing date | Title |
|---|---|---|
| FR2188597A5 | Opitcally-active alpha amino acid prepn - from imines and oximes of glyoxy-lic acid and alpha-keto-acids |