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Oberkirch, Germany

Papierfabrik August Koehler Ag

USPTO Granted Patents = 9

CIPO Patents = 4

EPO Patents = 4

Trademarks = 3

Forward Citations = 31

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19 inventors (with patents filed for the assignee):

Gunter Pietsch (3 out of 4 patents)

Karl-Heinz Schrader (3 out of 4 patents)

Claus Hartmann (2 out of 3 patents)

4. Gunther Pietsch (2 out of 2 patents)

5. Michael Horn (1 out of 13 patents)

6. Brian R Einsla (1 out of 10 patents)

7. Lan Deng (1 out of 8 patents)

8. Michael Boschert (1 out of 2 patents)

9. Chao-Jen Chung (1 out of 12 patents)

10. Juergen Keske (1 out of 1 patent)

11. Douglas Rudnick (1 out of 1 patent)

12. Hans-Thomas Armbruster (1 out of 2 patents)

13. Harald Kraft (1 out of 2 patents)

14. Wendelin Benz (1 out of 2 patents)

15. Georg Streif (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 9193208 - Recording material (2015-11-24),

2. 7892431 - Method and device for purification of effluent (2011-02-22),

3. 7833573 - Method for producing thermosensitive recording material and recording material produced according to said method (2010-11-16),

4. 7169335 - Process for encapsulating dissolved reactants of color-reaction systems, the capsules obtainable therefrom as well as their use in color-reaction papers (2007-01-30),

5. 5011634 - Microcapsules and microcapsule production process (1991-04-30),

6. 4965025 - Process for microencapsulating hydrophobic oils, the microcapsules (1990-10-23),

7. 4824823 - Microcapsules containing oils and soluble color reaction components, (1989-04-25),

8. 4748146 - Process for encapsulating dissolved reactants of color reaction systems, (1988-05-31),

9. 4684574 - Process for encapsulating dissolved reactants of color reaction system (1987-08-04),

Papierfabrik August Koehler Ag is a leading producer of specialty paper and board products. With a history dating back to 1907, the company is known for its high-quality, innovative paper solutions. Koehler utilizes sustainable manufacturing practices and is committed to environmental responsibility. Their diverse product range includes thermal paper, carbonless paper, decor paper, and packaging solutions.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

9 Patents

#3 in Oberkirch

#4,028 in Germany

Oberkirch, Germany

Papierfabrik August Koehler Ag

Forward Citations = 31

19 inventors:

Gunter Pietsch (3 out of 4 patents)

Karl-Heinz Schrader (3 out of 4 patents)

Claus Hartmann (2 out of 3 patents)

4. Gunther Pietsch (2 out of 2 patents)

5. Michael Horn (1 out of 13 patents)

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