For the Inventor, By the Inventor

Enter assignee name

Torrance, CA, United States of America

Pentel of America, Ltd.

USPTO Granted Patents = 23

Trademarks = 40

Forward Citations = 368

Loading Chart...

Loading Chart...

14 inventors (with patents filed for the assignee):

Tor H Petterson (6 out of 59 patents)

Minoru Osada (5 out of 5 patents)

James T Sener (4 out of 25 patents)

4. Christopher D Hageman (3 out of 32 patents)

5. Hisao Fukui (2 out of 4 patents)

6. James Sener (2 out of 59 patents)

7. Yasuo Otake (2 out of 4 patents)

8. David L Mathieu (2 out of 2 patents)

9. Nobuyuki Iwamoto (2 out of 2 patents)

10. Kevin J Costello (1 out of 1 patent)

11. Dave Mathieu (1 out of 1 patent)

12. Hidekazu Nakazawa (1 out of 23 patents)

13. Noaki Kato (1 out of 1 patent)

14. Tai Inami (1 out of 2 patents)

23 patents: Sort by Forward Citations

1. 7540679 - Variable grip structure (2009-06-02),

2. 7377708 - Writing instrument with multi-mode tethering (2008-05-27),

3. D540864 - Writing instrument (2007-04-17),

4. D538854 - Writing instrument (2007-03-20),

5. D535331 - Writing instrument with cap (2007-01-16),

6. D534213 - Writing instrument (2006-12-26),

7. D529550 - Writing instrument (2006-10-03),

8. D486857 - Writing instrument (2004-02-18),

9. D486182 - Grip for a writing instrument (2004-02-04),

10. D368738 - Pencil (1996-04-09),

11. D366497 - Writing instrument (1996-01-23),

12. D359759 - Cap for a writing instrument (1995-06-27),

13. D359758 - Grip for a writing instrument (1995-06-27),

14. D358170 - Grip for a writing instrument (1995-05-09),

15. D358169 - Retractable eraser (1995-05-09),

Pentel of America, Ltd. is a leading provider of writing instruments, arts and office supplies. With a commitment to innovation and quality, Pentel offers a wide range of products including pens, pencils, markers, and correction fluid. Their products are known for their reliability, performance, and style, making them a popular choice for consumers and professionals alike.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

23 Patents

#25 in

#13,918 in

#26,773 in the World

Torrance, CA, United States of America

Pentel of America, Ltd.

Forward Citations = 368

14 inventors:

Tor H Petterson (6 out of 59 patents)

Minoru Osada (5 out of 5 patents)

James T Sener (4 out of 25 patents)

4. Christopher D Hageman (3 out of 32 patents)

5. Hisao Fukui (2 out of 4 patents)

Please report any incorrect information to support@idiyas.com

Loading…