For the Inventor, By the Inventor

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Wilmington, NC, United States of America

Trans1 Inc.

USPTO Granted Patents = 46

% Expired Patents = 67.4

EPO Patents = 6

Trademarks = 9

Forward Citations = 5,372

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12 inventors (with patents filed for the assignee):

Andrew H Cragg (35 out of 126 patents)

Robert L Assell (29 out of 81 patents)

Eugene A Dickhudt (23 out of 72 patents)

4. Stephen D Ainsworth (18 out of 39 patents)

5. Bradley John Wessman (14 out of 43 patents)

6. Steven D Ainsworth (6 out of 8 patents)

7. Brandon Arthurs (4 out of 9 patents)

8. Jonathan Kagan (3 out of 60 patents)

9. Andrew M Cragg (2 out of 17 patents)

10. Steven D Alnsworth (1 out of 1 patent)

11. Tawney A Schwarz (1 out of 1 patent)

12. T Matthew Womble (1 out of 1 patent)

13. Andrew L Cragg (0 patent)

Core Competencies:

Prosthetic Nucleus

Spinal Distraction

Fusion Techniques

Motion Preservation

Therapeutic Procedures

Axial Access

Implant Manipulation

Guide Pin Introducer

Access Kits

Bone Anchors

Spinal Mobility

Intervertebral Discs

46 patents: Sort by Forward Citations

1. 8328847 - Assemblies for provision of therapy to motion segments (2012-12-11),

2. 8328846 - Prosthetic nucleus with a preformed membrane (2012-12-11),

3. 8317867 - Methods and apparatus for performing therapeutic procedures in the spine (2012-11-27),

4. 8308777 - Method and apparatus for removable spinal implant extending between at least two adjacent vertebral bodies (2012-11-13),

5. 8292928 - Method and apparatus for spinal distraction and fusion (2012-10-23),

6. 8167947 - Methods for push distraction and for provision of therapy to adjacent motion segments (2012-05-01),

7. 8105365 - Methods and apparatus for performing therapeutic procedures in the spine (2012-01-31),

8. 8088147 - Multi-membrane prosthetic nucleus (2012-01-03),

9. 8052613 - Spinal nucleus extraction tool (2011-11-08),

10. 8038680 - Drivers for inserts to bone anchors (2011-10-18),

11. 8034055 - Method and apparatus for providing access to a presacral space (2011-10-11),

12. 7938836 - Driver assembly for simultaneous axial delivery of spinal implants (2011-05-10),

13. 7914535 - Method and apparatus for manipulating material in the spine (2011-03-29),

14. 7905908 - Spinal mobility preservation method (2011-03-15),

15. 7905905 - Spinal mobility preservation apparatus (2011-03-15),

Company Overview

Trans1 Inc. is a medical device company based in Wilmington, NC, specializing in innovative spinal technologies. The organization focuses on developing advanced spinal implants and solutions aimed at enhancing spinal mobility and improving patient outcomes. Their expertise encompasses a range of therapeutic procedures, including spinal fusion and intervertebral disc preparation, as well as the design of axial access kits and spinal distraction systems. Trans1 is committed to advancing spinal care through its cutting-edge technologies and research initiatives.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

46 Patents

#3 in Wilmington, NC

#181 in North Carolina

#7,590 in US

#15,096 in the World

Wilmington, NC, United States of America

Trans1 Inc.

Forward Citations = 5,372

12 inventors:

Andrew H Cragg (35 out of 126 patents)

Robert L Assell (29 out of 81 patents)

Eugene A Dickhudt (23 out of 72 patents)

4. Stephen D Ainsworth (18 out of 39 patents)

5. Bradley John Wessman (14 out of 43 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Trans1 Inc.. Retrieved from https://idiyas.com/company/trans1

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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