Forward Citations = 81

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6 inventors (with patents filed for the assignee):

William K Holmes (1 out of 63 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),

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.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

4 Patents

#974 in San Diego, CA

#13,692 in California

#59,130 in US

San Diego, CA, United States of America

United States Elevator Corp.