John D. Ward
44Patents
9h-index
44Co-inventors
75Inventor score
Filing activity: Aug 22, 1975 → Oct 22, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4368775A | Hydraulic power equipment | Emerging Cross-Sectional Technologies | 55 | Expired |
| US7686581B2 | Serpentine cooling circuit and method for cooling tip shroud | Emerging Cross-Sectional Technologies | 47 | Active |
| US4236356A | Cutting saw and concrete groover | Performing Operations; Transporting | 33 | Expired |
| US5048243A | Earthquake restraint mechanism | Fixed Constructions | 32 | Expired |
| US4778304A | Pavement joint reworking apparatus | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5788428A | Power tool driving systems | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4184719A | Machine rails and carriages | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7493809B1 | Method and system for measuring deformation in turbine blades | Physics | 10 | Active |
| US4324275A | Retrofitting methods and retrofitted hydraulic drives | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8215914B2 | Compliant seal for rotor slot | Emerging Cross-Sectional Technologies | 8 | Active |
| US8038405B2 | Spring seal for turbine dovetail | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US3961664A | Split moulds and carriers therefor | Performing Operations; Transporting | 5 | Expired |
| US8425194B2 | Clamped plate seal | Emerging Cross-Sectional Technologies | 5 | Active |
| US9546928B2 | Methods for producing strain sensors on turbine components | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8210823B2 | Method and apparatus for creating seal slots for turbine components | Emerging Cross-Sectional Technologies | 3 | Active |
| US9016560B2 | Component identification system | Physics | 3 | Active |
| US9109873B1 | Apparatus and method for inspecting a turbine blade tip shroud | Physics | 2 | Active |
| US9151587B2 | Bucket tip shroud measurement fixture and method of measuring bucket tip shroud orientation | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9187696B2 | Delayed coking drum quench overflow systems and methods | Chemistry; Metallurgy | 2 | Active |
| US9511396B2 | Systems and methods for on-line pigging and spalling of coker furnace outlets | Chemistry; Metallurgy | 2 | Active |
| US9618334B2 | Systems and methods for monitoring turbine component strain | Physics | 2 | Active |
| US9410868B2 | Methods for producing strain sensors on turbine components | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9163872B2 | Method of operating a refrigeration system for a mobile cargo container | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10138425B2 | Delayed coke drum quench systems and methods having reduced atmospheric emissions | Chemistry; Metallurgy | 1 | Active |
| US9574447B2 | Modification process and modified article | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.