Donald E. Morris
34Patents
13h-index
33Co-inventors
81Inventor score
Filing activity: May 7, 1974 → Mar 12, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6057540A | Mouseless optical and position translation type screen pointer control for a computer system | Physics | 188 | Expired |
| US4817622A | Infrared imager for viewing subcutaneous location of vascular structures and method of use | Human Necessities | 148 | Expired |
| US5251627A | Non-invasive measurement of eyeball pressure using vibration | Human Necessities | 109 | Expired |
| US6544199B1 | Systems and methods for modifying behavioral disorders | Human Necessities | 69 | Expired |
| US5024992A | Preparation of highly oxidized RBa.sub.2 Cu.sub.4 O.sub.8 superconductors | Emerging Cross-Sectional Technologies | 42 | Expired |
| US3971925A | Adaptable programmed calculator having provision for plug-in keyboard and memory modules | Physics | 42 | Expired |
| US6093158A | Systems for modifying behavioral disorders | Human Necessities | 35 | Expired |
| US4075679A | Programmable calculator | Physics | 26 | Expired |
| US4052461A | Hydroformylation process | Performing Operations; Transporting | 23 | Expired |
| US5160482A | Zirconium-hafnium separation and purification process | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4377708A | Hydrocarboxylation of vinyl alkanoates | Chemistry; Metallurgy | 17 | Expired |
| US4181966A | Adaptable programmed calculator including a percent keyboard operator | Physics | 16 | Expired |
| US5430008A | Method and composition for improving flux pinning and critical current in superconductors | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4437156A | Programmable calculator | Physics | 10 | Expired |
| USD961975S1 | Compact water bottle filling station | General | 6 | Active |
| USD537150S1 | Square lavatory | General | 6 | Expired |
| US5492886A | Method of producing highly oxidized superconductors containing barium, copper, and a third metal | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4158668A | Preparation of carboxylic acids from internal olefins | Chemistry; Metallurgy | 5 | Expired |
| US4789839A | Method and apparatus for injecting charged particles across a magnetic field | Electricity | 4 | Expired |
| US5244638A | High pressure furnace | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4611082A | Production of hex-3-enedioate esters from 1,4 dialkoxy butenes | Chemistry; Metallurgy | 4 | Expired |
| US6694093B2 | Antifreeze system for instant water heaters | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4000170A | Production of carboxylic acids by controlling the active form of iridium catalyst in response to infrared absorption spectra | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4156921A | Adaptable programmed calculator including automatic decimal point positioning | Physics | 4 | Expired |
| US5130104A | High pressure oxygen furnace | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.