GRACO INC.
🏢 View company profile →191Patents
8Active
191Granted
43Portfolio score
Filing activity: Jun 17, 1974 → May 20, 2021 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5372389A | Nozzle swivel joint | Mechanical Engineering; Lighting; Heating | 150 | Expired |
| US5076761A | Safety drive circuit for pump motor | Electricity | 101 | Expired |
| US3940065A | Portable spraying apparatus | Performing Operations; Transporting | 97 | Expired |
| US5322221A | Air nozzle | Performing Operations; Transporting | 91 | Expired |
| US6019294A | Interchangeable feed airspray/HVLP spray gun | Mechanical Engineering; Lighting; Heating | 85 | Expired |
| US4046287A | Automatic metering and dispensing system | Performing Operations; Transporting | 69 | Expired |
| US4165836A | Rotatable spray nozzle with safety guard | Performing Operations; Transporting | 64 | Expired |
| US3955763A | Rotatable spray nozzle | Performing Operations; Transporting | 62 | Expired |
| US4019653A | Automatic proportioning paint spray system | Performing Operations; Transporting | 55 | Expired |
| US5145339A | Pulseless piston pump | Mechanical Engineering; Lighting; Heating | 51 | Expired |
| US4725713A | Electrically heated hose employing a hose simulator for temperature control | Electricity | 50 | Expired |
| US4886086A | Non-degrading pressure regulator | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5220259A | DC motor drive system and method | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US4589597A | Rotary atomizer spray painting device | Performing Operations; Transporting | 47 | Expired |
| US4386739A | Nozzle for hydrostatic fluid tip | Performing Operations; Transporting | 46 | Expired |
| US4848164A | Liquid flow meter | Physics | 45 | Expired |
| US5368232A | Striping apparatus for vehicle travel surfaces | Human Necessities | 44 | Expired |
| US4971249A | Airless spray tip retainer/diffuser | Performing Operations; Transporting | 42 | Expired |
| US4294408A | In centrifugal spray guns | Performing Operations; Transporting | 42 | Expired |
| US4068982A | Charge control valve and piston assembly for diaphragm pump | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US4501952A | Electric fluid heater temperature control system providing precise control under varying conditions | Physics | 40 | Expired |
| US5240390A | Air valve actuator for reciprocable machine | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4462061A | Air turbine drive for electrostatic spray gun | Performing Operations; Transporting | 37 | Expired |
| US5441297A | Power unit cart | Performing Operations; Transporting | 35 | Expired |
| US4263003A | Method of mixing liquids in closed containers | Emerging Cross-Sectional Technologies | 35 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.