| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 1 | |
| #3 | Germany | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Spectacles | |
| #2 | Grinding or polishing devices | |
| #3 | Manufacturing processes | |
| #4 | Unspecified technologies | |
| #5 | Advertising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Maynard Long Eli | 3 |
| #2 | Mcdonell William E | 2 |
| #3 | Bertram Jacob P | 1 |
| #4 | Du Paul George H | 1 |
| #5 | Ivar Sundstrom | 1 |
| #6 | Gage Harry W | 1 |
| #7 | Thomas Leytham | 1 |
| #8 | Long Eli Maynard | 1 |
| #9 | Jerry Carl R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1776946A | Attachment for eyeglass cases | |
| US1757036A | Eyeglass guard | |
| US1789942A | Lens cutter | |
| US1709943A | Lens grinding and polishing machine | |
| US1625885A | Ophthalmic mounting | |
| US1742404A | Lens grinding and polishing machine | |
| US1609871A | Ophthalmic mounting | |
| DE488628C | Device for cutting lenses, glasses and similar objects | |
| US1643219A | Ophthalmic mounting | |
| US1643218A | Ophthalmic mounting | |
| CA263239A | Lens grinding and polishing machine |