Forward Citations = 101

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7 inventors (with patents filed for the assignee):

Helmut K Waibel (5 out of 8 patents)

Mario G Plaza (4 out of 10 patents)

James E Cushman (2 out of 2 patents)

4. Brian P Verstegen (1 out of 1 patent)

5. Ronald A Lesea (1 out of 1 patent)

6. Austin H Lesea (1 out of 1 patent)

7. Barrie Luttge (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 4498794 - Printer feeder (1985-02-12),

2. 4417825 - Print drive medium for line/series printers (1983-11-29),

3. 4388006 - Printing ribbon cartridge (1983-06-14),

4. 4256928 - Telephone call diverting and answering system (1981-03-17),

5. 4227821 - Web drive mechanism for line/series printers (1980-10-14),

6. 4222673 - Print head carriage assembly for serial printers (1980-09-16),

7. D256796 - Desktop data processing system (1980-09-09),

8. 4188148 - Fastener assembly (1980-02-12),

9. 4187552 - Read only memory character generator system (1980-02-05),

Company Overview

Durango Systems, Inc. is a leading provider of innovative technology solutions for businesses. With a focus on cutting-edge software development and IT services, we help companies optimize their operations and achieve their digital transformation goals. Our team of experienced professionals is committed to delivering high-quality, customized solutions that drive growth and success for our clients. Learn more about how Durango Systems can help your business thrive at durangosystems.com

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

9 Patents

#556 in San Jose, CA

#7,730 in California

#32,565 in US

San Jose, CA, United States of America

Durango Systems, Inc.

Forward Citations = 101

7 inventors:

Helmut K Waibel (5 out of 8 patents)

Mario G Plaza (4 out of 10 patents)

James E Cushman (2 out of 2 patents)

4. Brian P Verstegen (1 out of 1 patent)

5. Ronald A Lesea (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Durango Systems, Inc.. Retrieved from https://idiyas.com/company/durango-systems

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]