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Jwi Ltd.

USPTO Granted Patents = 55

CIPO Patents = 6

Trademarks = 8

Forward Citations = 1,080

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61 inventors (with patents filed for the assignee):

Samuel M Baker (7 out of 12 patents)

Donald G MacBean (6 out of 6 patents)

David J Spyker (5 out of 5 patents)

4. Wesley G Koops (5 out of 5 patents)

5. Dale B Johnson (4 out of 13 patents)

6. Girish M Bhatt (4 out of 4 patents)

7. Rex Barrett (3 out of 16 patents)

8. John G Buchanan (3 out of 5 patents)

9. Eugene Z Fekete (3 out of 4 patents)

10. Victor E Hansen (3 out of 3 patents)

11. Douglas R McPherson (3 out of 3 patents)

12. Daniel DeHaan (3 out of 3 patents)

13. Daniel De Haan (3 out of 3 patents)

14. David P McLeod (3 out of 3 patents)

15. Richard E Pitt (3 out of 12 patents)

Core Competencies:

Multilayer Porous Fabric

Dewatering Mechanism

Composite Forming Fabric

Filter Press

Press Section

Dryer Fabric

Air-Assist Discharge

Woven Pin Seam

High Loop Density

Automatic Vacuum Valve

Sludge Drier

Electric Maintenance Vehicle

55 patents: Sort by Forward Citations

1. 6124015 - Multi-ply industrial fabric having integral jointing structures (2000-09-26),

2. 6030908 - Multilayer porous fabric (2000-02-29),

3. 6014797 - Method and apparatus for unravelling threads (2000-01-18),

4. 5826627 - Composite papermaking fabric with paired weft binding yarns (1998-10-27),

5. 5819811 - Low air permeability papermaking fabric seam (1998-10-13),

6. 5799707 - Single layer papermakers forming fabric (1998-09-01),

7. 5785818 - Multiaxial pin seamed papermaker's press felt (1998-07-28),

8. 5735330 - Formation in a two fabric paper machine (1998-04-07),

9. 5723046 - Drip tray lock mechanism for filter press (1998-03-03),

10. 5674384 - Filter press with weight-responsive bumping of filter plates (1997-10-07),

11. 5635061 - Plate shifter mechanism (1997-06-03),

12. 5630910 - Clip fastener for a dewatering box (1997-05-20),

13. 5597450 - Paper machine dryer fabrics containing hollow monofilaments (1997-01-28),

14. 5567327 - Air-assist discharge of filter press cake (1996-10-22),

15. 5544678 - Composite forming fabric woven with an Nx2N machine side layer (1996-08-13),

Company Overview

Jwi Ltd., based in Kanata, Canada, specializes in the development and manufacturing of advanced papermaking fabrics. The company focuses on innovative solutions such as multilayer porous fabrics and dewatering mechanisms, which enhance the efficiency of the papermaking process. Their expertise extends to composite forming fabrics, filter presses, and dryer fabrics, contributing to improved performance in the press section and air-assist discharge systems. Jwi Ltd. is committed to delivering high-quality products that meet the evolving needs of the paper industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

55 Patents

#8 in Kanata

#252 in Canada

#12,922 in the World

Jwi Ltd.

Forward Citations = 1,080

61 inventors:

Samuel M Baker (7 out of 12 patents)

Donald G MacBean (6 out of 6 patents)

David J Spyker (5 out of 5 patents)

4. Wesley G Koops (5 out of 5 patents)

5. Dale B Johnson (4 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Jwi Ltd.. Retrieved from https://idiyas.com/company/jwi

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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