Forward Citations = 35

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4 inventors (with patents filed for the assignee):

Claus Prochnow (1 out of 14 patents)

Hans J Rodeck (1 out of 1 patent)

Joachim Proske (1 out of 3 patents)

4. Ortwin Rosner (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 4329578 - Optical imaging system having variable focal length (1982-05-11),

2. 4323952 - Reflector for varying illumination distribution (1982-04-06),

3. 4289391 - Shutter speed display for viewfinder of a photographic camera (1981-09-15),

4. 4280762 - Camera having an independently focused retractable objective lens (1981-07-28),

Rollei-werke Franke & Heidecke GmbH & Co. is a renowned German manufacturer of high-quality cameras, optics, and accessories. With a legacy dating back to the 1920s, Rollei is known for its innovative products that cater to both amateur and professional photographers. The company is committed to delivering precision engineering and cutting-edge technology in all its offerings.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

4 Patents

#4 in Brunswick

#6,900 in Germany

Brunswick, Germany

Rollei-werke Franke & Heidecke Gmbh & Co.

Forward Citations = 35

4 inventors:

Claus Prochnow (1 out of 14 patents)

Hans J Rodeck (1 out of 1 patent)

Joachim Proske (1 out of 3 patents)

4. Ortwin Rosner (1 out of 2 patents)

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