% Expired Patents = 33.3

Forward Citations = 30

Loading Chart...

5 inventors (with patents filed for the assignee):

David Ian Richards (2 out of 3 patents)

Helen Louise Nelson (2 out of 3 patents)

Per Olov G Risman (1 out of 6 patents)

4. Rune Simonson (1 out of 1 patent)

5. Pia Larsson Brelid (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 6833537 - Microwave system for heating voluminous elongated loads (2004-12-21),

2. 5821359 - Acetylation of lignocellulosic fibres (1998-10-13),

3. 5777101 - Acetylation of lignocellulosic materials (1998-07-07),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#2 in Savedalen

#1,603 in Sweden

Savedalen, Sweden

A-Cell Acetyl Cellulosics Ab

Forward Citations = 30

5 inventors:

David Ian Richards (2 out of 3 patents)

Helen Louise Nelson (2 out of 3 patents)

Per Olov G Risman (1 out of 6 patents)

4. Rune Simonson (1 out of 1 patent)

5. Pia Larsson Brelid (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: A-Cell Acetyl Cellulosics Ab. Retrieved from https://idiyas.com/company/a-cell-acetyl-cellulosics-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]