| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 120 | |
| #2 | Canada | 3 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Mechanical elements | |
| #5 | Medical technology | |
| #6 | Surface technology and coating | |
| #7 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Optical systems | |
| #2 | Cameras | |
| #3 | Unspecified technologies | |
| #4 | Analysing materials | |
| #5 | Unspecified technologies | |
| #6 | Venting or aerating devices | |
| #7 | Diagnosis and surgery | |
| #8 | Coating metallic material | |
| #9 | Cutting | |
| #10 | Measuring light |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ott Harvey N | 53 |
| #2 | Estey Roger S | 11 |
| #3 | Harper Kennard W | 8 |
| #4 | Harold Osterberg | 7 |
| #5 | Richards Oscar W | 6 |
| #6 | Bufton Frank H | 6 |
| #7 | Bennett Alva H | 5 |
| #8 | Critoph David I | 5 |
| #9 | Peck William F | 5 |
| #10 | Ott Harry G | 5 |
| Publication | Filing date | Title |
|---|---|---|
| US2363770A | Lens system | |
| US2349424A | Optical instrument | |
| US2363788A | Lens system | |
| US2360221A | Microscope | |
| US2351537A | Apparatus for treating surfaces | |
| US2365594A | Microscope | |
| US2351539A | Polarimeter apparatus | |
| US2337679A | Apparatus for coating articles | |
| US2364768A | Means and method for securing optical elements | |
| US2370257A | Binocular or the like | |
| US2318844A | Optical instrument | |
| US2328284A | Optical instrument | |
| US2320504A | Binocular | |
| US2300559A | Microprojection apparatus | |
| US2330694A | Spectrometer | |
| US2351536A | Method of treating surfaces | |
| US2328211A | Microscope | |
| US2318871A | Microscope | |
| US2351471A | Means and method for adjusting and securing prisms | |
| US2353716A | Colorimetric apparatus |