For the Inventor, By the Inventor

Enter assignee name

Principal Ab

Calculating rank

USPTO Granted Patents = 3

% Expired Patents = 33.3

Forward Citations = 388

Loading Chart...

Loading Chart...

1 inventor (with patents filed for the assignee):

Pal Svedman (3 out of 10 patents)

3 patents: Sort by Forward Citations

1. 6855133 - Transdermal perfusion of fluids (2005-02-15),

2. 6048337 - Transdermal perfusion of fluids (2000-04-11),

3. 5441490 - Transdermal perfusion of fluids (1995-08-15),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#86 in Malmö

#1,604 in Sweden

Principal Ab

Forward Citations = 388

1 inventor:

Pal Svedman (3 out of 10 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Principal Ab. Retrieved from https://idiyas.com/company/principal-ab

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]

Loading…