Daniel Johnson
29Patents
14h-index
20Co-inventors
81Inventor score
Filing activity: May 29, 1987 → Oct 27, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6854137B2 | Patient transfer and transport bed | Human Necessities | 95 | Expired |
| US7062389B2 | Enterprise energy management system | Physics | 78 | Expired |
| US7369968B2 | Enterprise energy management system | Emerging Cross-Sectional Technologies | 50 | Active |
| US6871714B2 | Hospital bed power-assist | Performing Operations; Transporting | 45 | Expired |
| US7852222B2 | Method and system of asset identification and tracking for enterprise asset management | Physics | 42 | Active |
| US7877235B2 | Method and system for tracking and managing various operating parameters of enterprise assets | Emerging Cross-Sectional Technologies | 22 | Active |
| US7533742B2 | Bed transfer system | Performing Operations; Transporting | 22 | Active |
| US7000268B2 | Patient transfer and transport bed | Human Necessities | 22 | Expired |
| US7389836B2 | Power-assisted cart retriever with attenuated power output | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4782446A | Vibrator quality control method and system | Physics | 21 | Expired |
| US6880652B2 | Cart pulling vehicle with dual cable drums and dual torsion springs | Performing Operations; Transporting | 21 | Expired |
| US7219754B2 | Hospital bed power-assist | Performing Operations; Transporting | 20 | Expired |
| US7549651B2 | Cart coupler assembly for cart collection machines | Performing Operations; Transporting | 17 | Active |
| US7496532B2 | Enterprise asset management system and method | Electricity | 14 | Expired |
| US7571914B2 | Push-pull cart collection device and conversion assembly | Emerging Cross-Sectional Technologies | 13 | Active |
| US7853436B2 | Method and system for tracking and reporting emissions | Emerging Cross-Sectional Technologies | 13 | Active |
| US7086237B2 | Method and apparatus to measure and transfer liquefied refrigerant in a refrigeration system | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US8000938B2 | Method and system for tracking and managing destruction, reconstitution, or reclamation of regulated substances | Emerging Cross-Sectional Technologies | 12 | Active |
| US7493979B2 | Power-assisted cart retriever with attenuated power output | Emerging Cross-Sectional Technologies | 11 | Active |
| US7474218B2 | Method and system of asset identification and tracking for enterprise asset management | Physics | 10 | Active |
| US7647207B2 | Method and system for tracking and reporting emissions | Emerging Cross-Sectional Technologies | 10 | Active |
| US7578011B2 | Patient transfer and transport bed | Human Necessities | 10 | Active |
| US7930144B2 | Method and system for tracking and reporting emissions | Emerging Cross-Sectional Technologies | 7 | Active |
| US7512523B2 | Refrigerant loss tracking and repair | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US8997905B2 | Electric utility vehicle | Human Necessities | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.