Forward Citations = 82

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6 inventors (with patents filed for the assignee):

William K Holmes (1 out of 70 patents)

Richard E Watt (1 out of 3 patents)

John H Parker (1 out of 1 patent)

4. Willilam R Hoelscher (1 out of 1 patent)

5. Richard Edwin Watt (1 out of 8 patents)

6. Larry W Lind (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 5374794 - Elevator control valve assembly (1994-12-20),

2. 5135081 - Elevator position sensing system using coded vertical tape (1992-08-04),

3. 4750592 - Elevator position reading sensor system (1988-06-14),

4. 4630423 - Suspended-ceiling framework assembly (1986-12-23),

Company Overview

United States Elevator Corp. is a leading provider of elevator solutions in the United States. With over 50 years of experience, we specialize in design, installation, maintenance, and modernization of elevators for residential and commercial buildings. Our dedicated team of professionals ensures safe and efficient vertical transportation for our clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#1,007 in San Diego, CA

#14,051 in California

#60,641 in US

San Diego, CA, United States of America

United States Elevator Corp.

Forward Citations = 82

6 inventors:

William K Holmes (1 out of 70 patents)

Richard E Watt (1 out of 3 patents)

John H Parker (1 out of 1 patent)

4. Willilam R Hoelscher (1 out of 1 patent)

5. Richard Edwin Watt (1 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: United States Elevator Corp.. Retrieved from https://idiyas.com/company/united-states-elevator

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]