| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 11 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Thermal processes | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Air-conditioning | |
| #2 | Fire-fighting | |
| #3 | Bolts for doors or windows | |
| #4 | Doors and windows | |
| #5 | Finishing work on buildings | |
| #6 | Indexing scheme relating to hinges | |
| #7 | Structural elements | |
| #8 | Punching metal | |
| #9 | Wing fittings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Joly Jean Claude | 2 |
| #2 | Lejeune Patrick | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2778854A1 | Blinding device for smoke pipe | |
| FR2757775A1 | Fire-resistant device for ventilation duct | |
| FR2420018A1 | Strip for blind or ventilation grille - has upper and lower curled edges for positioning on frame | |
| FR2371208A1 | Tilting blade ventilation grid - has hollow S=shaped blades with resilient longitudinal edges giving sealing effect when closed |