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Levittown, PA, United States of America

Petrarch Systems

USPTO Granted Patents = 18

Trademarks = 1

Forward Citations = 293

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12 inventors (with patents filed for the assignee):

Barry C Arkles (15 out of 90 patents)

James M Lewis (3 out of 8 patents)

William R Peterson, Jr (3 out of 3 patents)

4. Robert A Owens (2 out of 6 patents)

5. Andrew J Blakeney (1 out of 45 patents)

6. Roland L Chin (1 out of 4 patents)

7. Susan A Ferguson (1 out of 4 patents)

8. William S Brinigar (1 out of 3 patents)

9. Joseph M Rokowski (1 out of 1 patent)

10. Kevin M King (1 out of 1 patent)

11. Burrell N Hamon (1 out of 1 patent)

12. Valentine T Zuba (1 out of 1 patent)

18 patents: Sort by Forward Citations

1. 4822722 - Process of using high contrast photoresist developer with enhanced (1989-04-18),

2. 4714739 - Curable silicone semi-interpenetrating polymer networks and methods of (1987-12-22),

3. 4711820 - Method of siliconization of surfaces with lower alkyl silanes (1987-12-08),

4. 4710449 - High contrast low metal ion positive photoresist developing method using (1987-12-01),

5. 4699991 - Methods of using silacrown ethers as catalysts (1987-10-13),

6. 4670372 - Process of developing radiation imaged photoresist with alkaline (1987-06-02),

7. 4626583 - Polysilane-siloxane oligomers and copolymers and methods of making the (1986-12-02),

8. 4596882 - Modified silacrown ethers and methods of making same (1986-06-24),

9. 4595775 - N-methylhydridosilazanes, polymers thereof, methods of making same and (1986-06-17),

10. 4577039 - Method of preparing hexamethylcyclotrisilazane (1986-03-18),

11. 4550139 - Mixtures of polyacrylate resins and siloxane-styrene copolymers (1985-10-29),

12. 4500688 - Curable silicone containing compositions and methods of making same (1985-02-19),

13. 4491669 - Mixed alkoxyaminosilanes, methods of making same and vulcanizing (1985-01-01),

14. 4478981 - Mixtures of polyacrylate resins and siloxane carbonate copolymers (1984-10-23),

15. 4469881 - [2-(p-t-Butylphenyl)ethyl]silanes and method of making the same (1984-09-04),

Petrarch Systems is a leading provider of innovative software solutions for businesses. With a focus on cutting-edge technology and unparalleled customer service, Petrarch Systems helps companies optimize their operations and drive growth. From custom software development to cloud-based solutions, Petrarch Systems offers a wide range of services to meet the unique needs of each client. Whether you are a small startup or a large corporation, Petrarch Systems has the expertise and resources to help you succeed in today's competitive market.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

18 Patents

#1 in Levittown, PA

#654 in Pennsylvania

#17,417 in US

#33,187 in the World

Levittown, PA, United States of America

Petrarch Systems

Forward Citations = 293

12 inventors:

Barry C Arkles (15 out of 90 patents)

James M Lewis (3 out of 8 patents)

William R Peterson, Jr (3 out of 3 patents)

4. Robert A Owens (2 out of 6 patents)

5. Andrew J Blakeney (1 out of 45 patents)

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