For the Inventor, By the Inventor

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Fort Collins, CO, United States of America

Symbios Logic Inc.

USPTO Granted Patents = 85

Forward Citations = 2,669

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87 inventors (with patents filed for the assignee):

Harold S Crafts (8 out of 49 patents)

Steven S Lee (5 out of 23 patents)

Dao-Long Chen (5 out of 20 patents)

4. Donald M Bartlett (5 out of 18 patents)

5. Derryl D Allman (5 out of 37 patents)

6. Rodney A Dekoning (4 out of 44 patents)

7. James Scott Prater (4 out of 13 patents)

8. Bret S Weber (3 out of 53 patents)

9. Frank Gasparik (3 out of 18 patents)

10. Hoang P Nguyen (3 out of 8 patents)

11. Keith B DuLac (3 out of 16 patents)

12. Dale F Rathunde (3 out of 3 patents)

13. Brian K Herbert (2 out of 15 patents)

14. William K Petty (2 out of 22 patents)

15. Dennis E Gates (2 out of 24 patents)

Core Competencies:

Integrated Circuits

Voltage Controlled Oscillator

Data Storage Systems

Semiconductor Fuse

Disk Array Architecture

Transistor Arrays

Battery Charging Circuits

High Voltage Stylus

Memory Management

Signal Generators

Analog Output Drivers

Electrostatic Discharge Protection

85 patents: Sort by Forward Citations

1. 5869900 - Sea-of-cells array of transistors (1999-02-09),

2. 5828011 - High voltage stylus for portable computer (1998-10-27),

3. 5787242 - Method and apparatus for treatment of deferred write data for a dead (1998-07-28),

4. 5777898 - Method and apparatus for aligning a digitizing panel with a display (1998-07-07),

5. 5777509 - Apparatus and method for generating a current with a positive (1998-07-07),

6. 5754080 - Single-edge triggered phase detector (1998-05-19),

7. 5752010 - Dual-mode graphics controller with preemptive video access (1998-05-12),

8. 5748871 - Dual bus architecture for a storage device (1998-05-05),

9. 5748050 - Linearization method and apparatus for voltage controlled oscillator (1998-05-05),

10. 5742752 - Method for performing a RAID stripe write operation using a drive XOR (1998-04-21),

11. 5736833 - Rapid battery charging circuit with overvoltage shunt (1998-04-07),

12. 5736680 - Polymorphic rectilinear thieving pad (1998-04-07),

13. 5734848 - Method and appartus for transferring data in a controller having (1998-03-31),

14. 5729705 - Method and apparatus for enhancing throughput of disk array data (1998-03-17),

15. 5728626 - Spin-on conductor process for integrated circuits (1998-03-17),

Company Overview

Symbios Logic Inc., based in Fort Collins, Colorado, specializes in the development and manufacturing of advanced integrated circuits. The company focuses on a range of core technologies, including voltage controlled oscillators, data storage systems, and semiconductor fuses. Their expertise extends to disk array architecture, transistor arrays, and battery charging circuits, as well as high voltage stylus technology. Symbios Logic is dedicated to innovation in the semiconductor industry, providing solutions that enhance performance and efficiency across various applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

85 Patents

#7 in Fort Collins, CO

#94 in Colorado

#4,378 in US

#8,962 in the World

Fort Collins, CO, United States of America

Symbios Logic Inc.

Forward Citations = 2,669

87 inventors:

Harold S Crafts (8 out of 49 patents)

Steven S Lee (5 out of 23 patents)

Dao-Long Chen (5 out of 20 patents)

4. Donald M Bartlett (5 out of 18 patents)

5. Derryl D Allman (5 out of 37 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Symbios Logic Inc.. Retrieved from https://idiyas.com/company/symbios-logic

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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