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For the Inventor, By the Inventor

Kråkerøy, Norway

Hamax A/s


USPTO Granted Patents = 5


Trademarks = 1

Forward Citations = 44

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4 inventors (with patents filed for the assignee):

goldMedal Wolfram Peters (3 out of 9 patents)

silverMedal Janwillem Bouwknegt (1 out of 6 patents)

bronzeMedal Jan Witte (1 out of 1 patent)

4.  Leif Hermansen (1 out of 1 patent)

5.  Dag Hoidal (0 patent)

6.  Asbjorn Eskild (0 patent)

7.  Dag Hoidal (0 patent)


5 patents:

1. D493748 - Sledge (2004-08-04),
2. D379331 - Sledge (1997-05-20),
3. D367181 - Child bike seat (1996-02-20),
4. D356447 - Child bike seat (1995-03-21),
5. D353963 - Attachment for a child's bicycle seat (1995-01-03),
Company Overview
Hamax is a leading manufacturer of child bike seats, sleds, and accessories. With over 60 years of experience, the company is known for its innovative designs and high-quality products that prioritize safety and comfort. Hamax is committed to providing families with safe and enjoyable ways to explore the outdoors together.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

5 Patents

#1 in Kråkerøy

#329 in Norway

Kråkerøy, NO
Kråkerøy, Norway

Hamax A/s

Forward Citations = 44

4 inventors:

goldMedal Wolfram Peters (3 out of 9 patents)

silverMedal Janwillem Bouwknegt (1 out of 6 patents)

bronzeMedal Jan Witte (1 out of 1 patent)

4.  Leif Hermansen (1 out of 1 patent)

5.  Dag Hoidal (0 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hamax A/s. Retrieved from https://idiyas.com/company/hamax-a-s

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]
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