| # | Country | Total Patents | |
|---|---|---|---|
| #1 | USSR (Union of Socialist Soviet Republics) | 24 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grigorev Aleksandr V | 24 |
| #2 | Kovalev Valerij N | 14 |
| #3 | Mashchenko Vladil V | 7 |
| #4 | Dovgij Viktor P | 5 |
| #5 | Melnitskij Aleksandr M | 3 |
| #6 | Tikhomirov Aleksandr S | 2 |
| #7 | Manilov Anatolij P | 1 |
| #8 | Pavlov Stanislav S | 1 |
| #9 | Shchedrolosev Vitalij N | 1 |
| #10 | Mashchenko Vdadil V | 1 |
| Publication | Filing date | Title |
|---|---|---|
| SU1428657A1 | Ship hatch closure | |
| SU1105374A1 | Rolling hatch cover | |
| SU1092087A1 | Apparatus for tightly shutting the sections of a closure | |
| SU1110712A1 | Closure for ship opening | |
| SU1041397A1 | Device for securing vessel hatch | |
| SU1017585A1 | Arrangement for closing a ship hatch lid | |
| SU1043068A1 | Ship ramp arrangement | |
| SU948751A1 | Ship hatch closure | |
| SU925743A1 | Hatch closure | |
| SU919931A1 | Versions of hatch closure | |
| SU800025A1 | Overboard gangplank | |
| SU893681A1 | Ship hatch cover | |
| SU653170A1 | Locking device for ship closure sections | |
| SU703414A1 | Hatch closure for ship | |
| SU709455A1 | Telescopic hatch closure | |
| SU612846A1 | Ship foldable ramp | |
| SU600024A1 | Foldable ship ramp | |
| SU600018A1 | Telescopic hatch cover | |
| SU740594A1 | Ship hatch closure | |
| SU576246A1 | Hatch cover for ships |