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Hampshire, United Kingdom

Chas. a. Blatchford & Sons Limited

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USPTO Granted Patents = 25

Trademarks = 14

Forward Citations = 1,282

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20 inventors (with patents filed for the assignee):

John J Shorter (8 out of 8 patents)

Victor James Woolnough (8 out of 8 patents)

Graham J Harris (5 out of 21 patents)

4. Mir Saeed Zahedi (4 out of 22 patents)

5. Andrew John Evans (4 out of 4 patents)

6. Andrew John Sykes (3 out of 13 patents)

7. Stephen Terry Lang (3 out of 14 patents)

8. Brian G Blatchford (3 out of 3 patents)

9. Brian Stephen Blatchford (2 out of 2 patents)

10. Michael W Brewer (2 out of 2 patents)

11. Fadi Abimosleh (1 out of 12 patents)

12. David Moser (1 out of 15 patents)

13. Alan Aulie (1 out of 1 patent)

14. Peter D Edwards (1 out of 1 patent)

15. Vic J Woolnough (1 out of 1 patent)

Core Competencies:

Prosthetic Ankle

Knee Joint Mechanism

Lower Limb Prosthesis

Control Unit

Hydraulic Knee Flexion

Injection Molded

Cosmetic Covering

Dorsi-Flexion Restriction

Reinforced Plastics

Stabilized Mechanism

Multi-Bar Linkage

Endo-Skeletal Limb

25 patents: Sort by Forward Citations

1. 7985265 - Prosthetic ankle and foot combination (2011-07-26),

2. 7883548 - Prosthetic knee joint mechanism (2011-02-08),

3. 6719807 - Prosthetic foot (2004-04-13),

4. 6719806 - Lower limb prosthesis and control unit (2004-04-13),

5. 6517585 - Lower limb prosthesis (2003-02-11),

6. 6241775 - Specification of an artificial limb (2001-06-05),

7. 6206933 - Knee prosthesis (2001-03-27),

8. 6197067 - Lower limb prosthesis with an injection molded flanged shin portion (2001-03-06),

9. 6083265 - Foot and shin component for a lower limb prosthesis (2000-07-04),

10. 5997583 - Lower limb prosthesis and a shin component for the prosthesis (1999-12-07),

11. 5972035 - Specification of an artificial limb (1999-10-26),

12. 5941913 - Above-knee lower limb prosthesis and a shin component for the prosthesis (1999-08-24),

13. 5893891 - Prosthesis control system (1999-04-13),

14. D406344 - Shin component for a lower-limb prothesis (1999-03-02),

15. 5376137 - Artificial leg with hydraulic knee flexion resistance (1994-12-27),

Company Overview

Chas. A. Blatchford & Sons Limited is a prominent manufacturer specializing in advanced prosthetic and orthotic solutions. With a focus on enhancing mobility and quality of life, the company develops innovative products that integrate cutting-edge technology and materials. Based in Hampshire, the organization is dedicated to research and development in the field of medical devices, ensuring that their offerings meet the evolving needs of healthcare professionals and patients alike.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

25 Patents

#7 in Hampshire

#704 in United Kingdom

#25,748 in the World

Hampshire, United Kingdom

Chas. a. Blatchford & Sons Limited

Forward Citations = 1,282

20 inventors:

John J Shorter (8 out of 8 patents)

Victor James Woolnough (8 out of 8 patents)

Graham J Harris (5 out of 21 patents)

4. Mir Saeed Zahedi (4 out of 22 patents)

5. Andrew John Evans (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chas. a. Blatchford & Sons Limited. Retrieved from https://idiyas.com/company/chas-a-blatchford-and-sons

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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