| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 3 | |
| #2 | Hungary | 3 | |
| #3 | United States | 3 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Spain | 1 | |
| #8 | Finland | 1 | |
| #9 | Japan | 1 | |
| #10 | Sweden | 1 | |
| #11 | USSR (Union of Socialist Soviet Republics) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Computer technology | |
| #3 | Textiles and paper | |
| #4 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Soldering, welding and flame cutting | |
| #2 | Electric digital data processing | |
| #3 | Typewriters | |
| #4 | Display controls | |
| #5 | Data recognition and presentation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jelezov Jivko Y | 3 |
| #2 | Marinov Julian P | 3 |
| #3 | Popov Peter A | 3 |
| #4 | Kantchev Dimiter V | 3 |
| #5 | Tzanov Peter S | 3 |
| #6 | Bogdanov Todor D | 3 |
| #7 | Jelezov Jivko Yordanov | 2 |
| #8 | Popov Peter Atanassov | 2 |
| #9 | Stantchev Ivan Tenev | 2 |
| #10 | Marinov Julian Parvov | 2 |
| Publication | Filing date | Title |
|---|---|---|
| HUT41147A | Equipment for direct acces control of a memory in 16-bit microprocessor system according to the bit sequence | |
| CA1252692A | Planetary wire-feeding mechanism | |
| FI854789A0 | Planetary welding wire feeder | |
| US3537563A | Cylindrical printing member | |
| FR1538937A | Device for entering, holding, processing and indicating the decimal point, in particular in electronic calculators | |
| FR1538936A | Multiplication device, in particular for electronic calculators | |
| US3422754A | Printing assembly controlled by electric pulses | |
| FR1509729A | Method of summing terms in an adder and totalizing device |