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Milford, DE, United States of America

Dentsply Research & Development Corp.

USPTO Granted Patents = 217

% Expired Patents = 0.46

Trademarks = 107

Forward Citations = 6,551

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181 inventors (with patents filed for the assignee):

Paul D Hammesfahr (23 out of 35 patents)

Donald I Gonser (20 out of 21 patents)

Louis H Tateosian (16 out of 18 patents)

4. Steven R Jefferies (14 out of 31 patents)

5. Chin-Teh Huang (13 out of 13 patents)

6. Kewang Lu (10 out of 13 patents)

7. Robert V Hare (9 out of 10 patents)

8. George E Warrin (8 out of 15 patents)

9. Richard H Paschke (7 out of 16 patents)

10. Andrew Murray Lichkus (7 out of 21 patents)

11. Gordon Brian Blackwell (7 out of 17 patents)

12. Richard E Welsh (7 out of 7 patents)

13. Emery W Dougherty (6 out of 6 patents)

14. Barry D Dehoff (6 out of 6 patents)

15. John J Blair (6 out of 6 patents)

Core Competencies:

Dental Adhesive

Impression Material

Restorative Composition

Dental Prosthesis

Tooth Whitening

Ultrasonic Scaler

Polyvinylsiloxane

Dental Scaler

Prosthetic Teeth

Dental Composite

Abrasive Powders

Dental X-Ray

217 patents: Sort by Forward Citations

1. 7024770 - Method of making a dental product (2006-04-11),

2. 6918765 - Hydrogel dental adhesive composition, product, system, method and dispenser (2005-07-19),

3. 6855278 - Process of making a dental prosthesis (2005-02-15),

4. 6843654 - Dental prosthesis (2005-01-18),

5. 6799969 - Wax-like polymerizable dental material, method and shaped product (2004-10-05),

6. 6783810 - Reducing polymerization stress by controlled segmental curing (2004-08-31),

7. 6705862 - Advanced buccal tube (2004-03-16),

8. 6696507 - Dental composite restorative material and method of restoring a tooth (2004-02-24),

9. 6685923 - Tooth whitening material and method of whitening teeth (2004-02-03),

10. 6619957 - Ultrasonic scaler (2003-09-16),

11. 6612465 - Multi-component mixing storage and dispensing device (2003-09-02),

12. 6592369 - Wax-like polymerizable dental material, method and shaped product (2003-07-15),

13. 6571992 - Dispensing syringe (2003-06-03),

14. 6561807 - Polyvinylsiloxane impression material (2003-05-13),

15. 6553095 - Automatic exposure control for dental panoramic and cephalographic x-ray equipment (2003-04-22),

Company Overview

Dentsply Research & Development Corp., headquartered in Milford, Delaware, specializes in the development and manufacturing of advanced dental materials. The company focuses on a range of core technologies including dental adhesives, impression materials, restorative compositions, and dental prostheses. Additionally, Dentsply is known for innovations in tooth whitening, ultrasonic scalers, and polyvinylsiloxane products, contributing significantly to the dental industry by enhancing treatment outcomes and patient care.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

217 Patents

#1 in Milford, DE

#41 in Delaware

#1,935 in US

#3,945 in the World

Milford, DE, United States of America

Dentsply Research & Development Corp.

Forward Citations = 6,551

181 inventors:

Paul D Hammesfahr (23 out of 35 patents)

Donald I Gonser (20 out of 21 patents)

Louis H Tateosian (16 out of 18 patents)

4. Steven R Jefferies (14 out of 31 patents)

5. Chin-Teh Huang (13 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dentsply Research & Development Corp.. Retrieved from https://idiyas.com/company/dentsply-research-and-development

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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