with lenses or other refractive optical elements

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Patents Grantslast 30 patents

Information Patent Grant
Lens system for a camera objective, camera objective and method for...
- Patent number 11,202,020
- Issue date Dec 14, 2021
- Carl Zeiss AG
- Benjamin Voelker
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Game system and device for projecting game information onto a surface
- Patent number 8,162,316
- Issue date Apr 24, 2012
- Home Focus Development Ltd
- Jacob Ranis Stokholm Andersen
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Puzzles with decoding lenses and encoded images
- Patent number 6,565,089
- Issue date May 20, 2003
- Jose R. Matos
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Board game apparatus
- Patent number 5,342,056
- Issue date Aug 30, 1994
- Lamia A. A. Ajaji
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Random indicia selector
- Patent number 4,943,062
- Issue date Jul 24, 1990
- Richard A. Gillette
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
3309088
- Patent number 3,309,088
- Issue date Mar 14, 1967
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
2945312
- Patent number 2,945,312
- Issue date Jul 19, 1960
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS