CIPO Patents = 1

Forward Citations = 168

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9 inventors (with patents filed for the assignee):

Dieter H Kallenbach (5 out of 15 patents)

David S Atkins (2 out of 8 patents)

Chris A Rice (1 out of 12 patents)

4. Andrew W Dawson (1 out of 2 patents)

5. John T Evans (1 out of 2 patents)

6. Desroy D Smith (1 out of 3 patents)

7. Alain J Gazzola (1 out of 3 patents)

8. Robert W Marklew (1 out of 1 patent)

9. William Stone (1 out of 1 patent)

10. Dieter H F Kallenbach (2 patents)

11. Helge Jochen Schneider (0 patent)

9 patents: Sort by Forward Citations

1. 5421054 - Swimming pool cleaner discs (1995-06-06),

2. 5315728 - Swimming pool cleaner components (1994-05-31),

3. D346888 - Automatic swimming pool cleaner (1994-05-10),

4. D343035 - Counterbalance for an automatic swimming pool cleaner head (1994-01-04),

5. D343034 - Counterbalance for an automatic swimming pool cleaner head (1994-01-04),

6. 5269913 - Debris trap (1993-12-14),

7. D325796 - Automatic swimming pool cleaner (1992-04-28),

8. 5105848 - Automatic relief valve (1992-04-21),

9. 5100541 - In-line debris trap for swimming pool filtration system (1992-03-31),

Company Overview

Zarina Holding C.v. is a leading investment firm based in the Netherlands. With a diversified portfolio ranging from real estate to technology companies, Zarina Holding is focused on long-term growth and value creation. The company's strategic investments and partnerships have enabled them to achieve sustainable financial success in various industries.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

9 Patents

#65 in Amsterdam

#682 in Netherlands

Amsterdam, Netherlands

Zarina Holding C.v.

Forward Citations = 168

9 inventors:

Dieter H Kallenbach (5 out of 15 patents)

David S Atkins (2 out of 8 patents)

Chris A Rice (1 out of 12 patents)

4. Andrew W Dawson (1 out of 2 patents)

5. John T Evans (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Zarina Holding C.v.. Retrieved from https://idiyas.com/company/zarina-holding-c-v

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

1 patent (CIPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]