| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 6 | |
| #2 | Denmark | 4 | |
| #3 | Spain | 4 | |
| #4 | Canada | 1 | |
| #5 | Czechia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Measuring volume | |
| #2 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hejduk Frantisek | 6 |
| #2 | Frantisek Hejduk | 6 |
| #3 | Neumann Jan Dr | 5 |
| #4 | Dr Neumann Jan Ing | 2 |
| #5 | Neumann Jan | 2 |
| #6 | Neumann Statstjenestemand Dr I | 2 |
| #7 | Tusla Petr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CZ35197A3 | Reluctance linear generator integrated with special internal combustion engine | |
| ES142503A1 | A device for mixing liquids. | |
| ES137987A1 | A multi-piston counter for flow liquids. | |
| ES136681A1 | Improvements in multiple piston counters for flow liquids. | |
| ES133679A1 | A volumetric meter of liquids, without action of the temperature on the volume of measure. | |
| CA361327A | Volumetric liquid meter |