For the Inventor, By the Inventor

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Braunschweig, undefined

Rollei-werke Franke & Heidecke

USPTO Granted Patents = 83

Forward Citations = 428

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39 inventors (with patents filed for the assignee):

Claus Prochnow (11 out of 14 patents)

Reinhard Sobotta (10 out of 10 patents)

Heinz Waaske (9 out of 9 patents)

4. Dieter Mankau (7 out of 7 patents)

5. Bodo Mielke (6 out of 7 patents)

6. Friedrich Papke (6 out of 6 patents)

7. Jochen Kramer (6 out of 7 patents)

8. Kurt Bode (5 out of 5 patents)

9. Karl-Peter Strauss (5 out of 5 patents)

10. Arthur Schneider (5 out of 5 patents)

11. Erwin Scholz (4 out of 4 patents)

12. Gunter Adamski (3 out of 4 patents)

13. Stefan Borejko (3 out of 3 patents)

14. Armin Stiller (3 out of 3 patents)

15. Gunter Rausch (2 out of 2 patents)

Core Competencies:

Worm Gear Mount

Remote Control Unit

Automatic Flash Power Level

Photographic View Finder

Electronic Flash Unit

Mirror Reflex Camera

Photographic Slide Projector

Rapid-Charging Circuit

Capacitor Charge Indicator

Film Feed Mechanism

Automatic Exposure Control

Interchangeable Objective

83 patents: Sort by Forward Citations

1. 4308759 - Worm gear mount (1982-01-05),

2. 4306792 - Camera with automatic flash power level selection (1981-12-22),

3. 4306782 - Removable remote control unit for a slide projector (1981-12-22),

4. D261894 - Camera (1981-11-17),

5. 4219265 - Photographic view finder camera with retractable lens tube (1980-08-26),

6. D255689 - Electronic flash unit (1980-07-01),

7. 4208617 - Light measuring unit for an electronic flash device (1980-06-17),

8. 4208115 - Viewfinder system with focusing screen (1980-06-17),

9. 4208113 - Photographic camera (1980-06-17),

10. D254790 - Combined miniature camera and holding device for the same (1980-04-22),

11. D253829 - Mirror reflex camera (1980-01-01),

12. D253708 - Photographic slide projector (1979-12-18),

13. D253475 - Photographic camera (1979-11-20),

14. 4173903 - Crank drive for a photographic camera (1979-11-13),

15. 4170409 - Still projector with cover (1979-10-09),

Rollei-Werke Franke & Heidecke is a renowned German manufacturer of innovative and professional photographic equipment. With a rich heritage dating back to 1920, the company is best known for its high-quality cameras and lenses, particularly the iconic Rolleiflex twin-lens reflex cameras. Over the years, Rollei-Werke Franke & Heidecke has established itself as a trusted brand among photographers worldwide, combining craftsmanship, precision engineering, and cutting-edge technology to deliver exceptional imaging solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

83 Patents

#1 in Braunschweig

#713 in D

#8,826 in the World

Braunschweig, undefined

Rollei-werke Franke & Heidecke

Forward Citations = 428

39 inventors:

Claus Prochnow (11 out of 14 patents)

Reinhard Sobotta (10 out of 10 patents)

Heinz Waaske (9 out of 9 patents)

4. Dieter Mankau (7 out of 7 patents)

5. Bodo Mielke (6 out of 7 patents)

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