| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Germany | 3 | |
| #3 | United Kingdom | 3 | |
| #4 | Australia | 2 | |
| #5 | Canada | 2 | |
| #6 | Italy | 2 | |
| #7 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Chemical engineering | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Processing photographic materials | |
| #2 | Climate change adaptation technologies | |
| #3 | Separation | |
| #4 | Cameras |
| # | Name | Total Patents |
|---|---|---|
| #1 | Patrick Henry W | 11 |
| #2 | Neeb Robert P | 10 |
| #3 | Mumford Ray H | 9 |
| #4 | Patrick H | 1 |
| #5 | Mumford R | 1 |
| #6 | Neeb R | 1 |
| #7 | Raleigh N C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4288155A | Variable volume diazotype developing apparatus and method | |
| CA1120394A | Ammonia collection and absorption apparatus for diazo reproduction machines | |
| US4142790A | Diazotype developing apparatus with improved liquid metering assembly | |
| US3940782A | Diazotype developing apparatus with liquid metering assembly | |
| US3786736A | Diazotype developing apparatus | |
| US3674257A | Sheet separator for copying machines |