David Malcolm Lewis
50Patents
11h-index
42Co-inventors
78Inventor score
Filing activity: Dec 5, 1972 → Oct 16, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5633678A | Electronic still camera for capturing and categorizing images | Electricity | 512 | Expired |
| US4276730A | Building wall construction | Fixed Constructions | 72 | Expired |
| US4455147A | Transfer printing | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5325554A | Retainer for bedclothes | Human Necessities | 22 | Expired |
| US7971602B2 | Systems and methods for the collection, retention and redistribution of rainwater and methods of construction of the same | Emerging Cross-Sectional Technologies | 21 | Active |
| USD614481S1 | Framework connector | General | 20 | Expired |
| US4815024A | Simulation apparatus | Physics | 18 | Expired |
| US4563189A | Treatment of fibers with arylating agents to enhance disperse dyeability | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4032565A | Cross-linkable compounds | Textiles; Paper | 14 | Expired |
| US5071641A | Method of setting hair | Human Necessities | 13 | Expired |
| US8753696B1 | Methods for preparing cannabis and related products | Human Necessities | 11 | Active |
| US6258928A | Process for improving characteristics of a polyamide | Textiles; Paper | 10 | Expired |
| US6387389B1 | Sustained-release derivatives of hydroxylated analogs of substituted 1-[2[bis(aryl)methoxy]ethyl]-piperazines and -homopiperazines and their use | Chemistry; Metallurgy | 10 | Expired |
| US8157905B2 | Security inks containing infrared absorbing metal compounds | Emerging Cross-Sectional Technologies | 8 | Active |
| US6447554B1 | Reactive dye compounds | Human Necessities | 7 | Expired |
| US3933421A | Polymer treatment of fibrous and filamentary materials | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6350862B1 | Reactive dye compounds | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4835726A | Apparatus for analog simulation of a circuit | Physics | 6 | Expired |
| US6518407B1 | Reactive dye compound comprising at least one chromophore moiety and at least one nitrogen-containing heterocycle | Textiles; Paper | 5 | Expired |
| US5364415A | Oxidative hair dye compositions and processes utilizing leuco vat dyes | Human Necessities | 5 | Expired |
| US3968146A | Esters of sulfothio alkanoic acids | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6869453B1 | Reactive dye compounds | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4950301A | Keratinous textile treatment with arylating compounds containing fibre reactive groups | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6736864B1 | Reactive dye compounds | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10183372B2 | Thread repair tools and methods of making and using the same | Performing Operations; Transporting | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.