| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 1 | |
| #2 | German Democratic Republic | 1 | |
| #3 | Egypt | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Israel | 1 | |
| #6 | India | 1 | |
| #7 | Republic of Korea | 1 | |
| #8 | Mexico | 1 | |
| #9 | African Intellectual Property Organization | 1 | |
| #10 | Poland | 1 | |
| #11 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Systems controlling non-electric variables | |
| #2 | Venting or aerating devices | |
| #3 | Unspecified technologies | |
| #4 | Horticulture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ornstein Leonard | 8 |
| #2 | Leonard Ornstein | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR830001700B1 | Apparatus of controlling the relative humidity in soil | |
| US4182357A | Method of controlling the relative humidity in a soil environment and apparatus for accomplishing same |