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Levittown, PA, United States of America

Petrarch Systems

USPTO Granted Patents = 18

Trademarks = 1

Forward Citations = 294

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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 technology company based in Levittown, PA, specializing in advanced software solutions and systems integration. The organization focuses on developing innovative applications that enhance operational efficiency across various sectors. With a strong emphasis on research and development, Petrarch Systems is dedicated to pushing the boundaries of technology, particularly in areas such as data analytics and automation. Their expertise supports clients in optimizing processes and achieving strategic objectives.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

18 Patents

#1 in Levittown, PA

#658 in Pennsylvania

#17,952 in US

#34,187 in the World

Levittown, PA, United States of America

Petrarch Systems

Forward Citations = 294

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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