For the Inventor, By the Inventor

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Pleasanton, CA, United States of America

Castlewood Systems, Inc.

USPTO Granted Patents = 22

Forward Citations = 129

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11 inventors (with patents filed for the assignee):

Syed H Iftikar (9 out of 9 patents)

Albert J Guerini (8 out of 27 patents)

Long Van Nguyen (7 out of 43 patents)

4. Hong Khuu (7 out of 10 patents)

5. David M Drouin (5 out of 12 patents)

6. Frank Ivan Morris (4 out of 22 patents)

7. Vien N Nguyen (3 out of 4 patents)

8. Stephen R Jackson (2 out of 3 patents)

9. Howard Steinhoff (1 out of 1 patent)

10. Venkat R Koka (1 out of 1 patent)

11. Li-Hsin Lu (1 out of 1 patent)

22 patents: Sort by Forward Citations

1. 6369970 - Multiple disk write method and device (2002-04-09),

2. 6353510 - Disk speed profile method and device (2002-03-05),

3. 6271986 - Video disk cartridge disk hub locking mechanism (2001-08-07),

4. 6226142 - Burst pattern for detecting the position of a read/write head relative to a magnetic disk (2001-05-01),

5. 6191904 - Data sector timing compensation technique based upon drive eccentricity (2001-02-20),

6. 6188545 - Moveable disk wiper apparatus and method (2001-02-13),

7. 6125006 - Voice coil motor actuated video data cartridge release (2000-09-26),

8. 6092195 - Encryption of defects map (2000-07-18),

9. 6081407 - Cover springs for positioning a removable video disk cartridge (2000-06-27),

10. 6081400 - Power-off method and device for electronic storage apparatus (2000-06-27),

11. D424048 - Video and computer data cartridge (2000-05-02),

12. 6028737 - Removable drive cover having flush surface (2000-02-22),

13. 6028736 - Location and centering of a digital video cartridge within a disk drive (2000-02-22),

14. D418828 - Element of an audio, video and computer data cartridge (2000-01-11),

15. 6011773 - Anti-rattle mechanism for a removable video disk cartridge (2000-01-04),

Castlewood Systems, Inc. is a leading provider of innovative IT solutions for businesses of all sizes. With a focus on cybersecurity, cloud computing, and data management, Castlewood Systems helps companies streamline their operations and protect their valuable assets. Their team of experts is dedicated to delivering top-notch service and support to ensure clients have the best technology solutions available.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 20 2026

22 Patents

#30 in Pleasanton, CA

#3,464 in California

#14,553 in US

#27,952 in the World

Pleasanton, CA, United States of America

Castlewood Systems, Inc.

Forward Citations = 129

11 inventors:

Syed H Iftikar (9 out of 9 patents)

Albert J Guerini (8 out of 27 patents)

Long Van Nguyen (7 out of 43 patents)

4. Hong Khuu (7 out of 10 patents)

5. David M Drouin (5 out of 12 patents)

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