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Inventor

CRAWFORD ROY RANDALL

US6 patents
⚠️ This page may combine multiple inventors who share the name “CRAWFORD ROY RANDALL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TRANE INT INC

4 patents
US9115907B2Aug 25, 2015

Ventilation controller

TRANE INT INC7 citations78
US8961282B2Feb 24, 2015

Ventilation controller

TRANE INT INC3 citations60
US11953216B2Apr 9, 2024

Ventilation controller

TRANE INT INC0 citations56
US11199334B2Dec 14, 2021

Ventilation controller

TRANE INT INC0 citations56

Johnson Controls Tyco IP Holdings LLP

1 patent
US12405024B2Sep 2, 2025

Heat pump control systems and methods

Johnson Controls Tyco IP Holdings LLP0 citations47

SAPP GARY LEE

1 patent
US9267717B2Feb 23, 2016

System and method of charge management

SAPP GARY LEE0 citations27