| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 19 | |
| #2 | France | 2 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Medical technology | |
| #3 | Machine tools | |
| #4 | Electrical machinery and energy | |
| #5 | Machines | |
| #6 | Audio-visual technology | |
| #7 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Spectacles | |
| #2 | Grinding or polishing devices | |
| #3 | Diagnosis and surgery | |
| #4 | Implantable devices | |
| #5 | Electric switches | |
| #6 | Unspecified technologies | |
| #7 | Garment fastenings | |
| #8 | Manufacturing processes | |
| #9 | Advertising | |
| #10 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Meyrowitz Emil B | 10 |
| #2 | Buchhop Ferdinand | 4 |
| #3 | Schwinzer John R | 1 |
| #4 | Bechtold Adolph | 1 |
| #5 | Bechtold August C | 1 |
| #6 | Dieckmann Carl F | 1 |
| #7 | Schmidt Henry | 1 |
| #8 | Rosenbaum William A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US963380A | Eyeglasses. | |
| US968698A | Apparatus for grinding lenses. | |
| US1069278A | Eyeglasses. | |
| US939975A | Lens-grinding machine. | |
| US937763A | Lens-grinding implement. | |
| US938459A | Lens-grinding machine. | |
| US879749A | Goggles. | |
| US871762A | Goggles. | |
| US875278A | Opthalmometer. | |
| US869938A | Method of making bifocal lenses. | |
| US823133A | Eyeglass-holder. | |
| US822215A | Opera-glass. | |
| US833077A | Eyeglasses. | |
| US824944A | Eyeglasses. | |
| US766490A | Cut-out. | |
| US769805A | Eyesight-test cabinet. | |
| US759229A | Apparatus for testing the eyesight. | |
| US709790A | Ophthalmoscope. | |
| US710594A | Eyeglass nose-guard. |