| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 58 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | Japan | 2 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Machines | |
| #3 | Control | |
| #4 | Audio-visual technology | |
| #5 | Telecommunications | |
| #6 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Cameras | |
| #2 | Unspecified technologies | |
| #3 | Teaching materials | |
| #4 | Nonlinear optics | |
| #5 | Photomechanical semiconductor production | |
| #6 | Television | |
| #7 | Loudspeakers and microphones | |
| #8 | Transmission | |
| #9 | Photosensitive materials | |
| #10 | Filing and indexing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grunwald Peter H | 7 |
| #2 | Grunwald Peter Hein | 4 |
| #3 | Zawels Jack Dr | 4 |
| #4 | Landsee Rainer | 2 |
| #5 | Grunwald Peter | 1 |
| #6 | Schaefer Gerold | 1 |
| #7 | Peetaa Hain Guruunbuaruto | 1 |
| #8 | Peetaa Hain Gurunbuaruto | 1 |
| #9 | Grunwald Peter-Hein | 1 |
| #10 | Petraglio Hortense | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3723181A1 | A liquid-crystal demonstration device to be placed onto the demonstration surface of an overhead projector | |
| DE3712999A1 | OVERHEAD PROJECTOR | |
| DE3711542A1 | Overhead type projector e.g. LCD device - has projection head mounted on carrier arm and comprising objective and deflection mirror with light source | |
| DE3711540A1 | Electric signals converter for video signal projection - has small transparency projector with LCD of transparency size in image plane | |
| DE3711541A1 | Liquid crystal display system for overhead picture projection - has two transparent plates sandwiching liquid crystal and held by frame with plug for computer | |
| DE3710628A1 | OVERHEAD PROJECTOR | |
| DE3629771A1 | OVERHEAD PROJECTOR | |
| DE3627740A1 | Overhead projector | |
| DE3622471A1 | Overhead projector | |
| DE3622472A1 | Overhead projector | |
| DE3618993A1 | Overhead projector | |
| DE3618992A1 | OVERHEAD PROJECTOR | |
| DE3600775A1 | Optical projector | |
| DE3600776A1 | Optical projector | |
| DE3537470A1 | Device for projecting slides using an overhead projector | |
| DE3519506A1 | Overhead projector | |
| JPS6117134A | Overhead type projector | |
| DE3512465A1 | OVERHEAD PROJECTOR | |
| DE3512466A1 | Overhead projector | |
| DE3506968A1 | Overhead projector |