Wilhelm E. Walles
27Patents
13h-index
12Co-inventors
78Inventor score
Filing activity: Jun 28, 1971 → Jun 24, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4741401A | Method for treating subterranean formations | Emerging Cross-Sectional Technologies | 244 | Expired |
| US4745015A | Thermal insulating panel | Emerging Cross-Sectional Technologies | 84 | Expired |
| US4756844A | Controlled-release composition having a membrane comprising submicron particles | Emerging Cross-Sectional Technologies | 66 | Expired |
| US3993811A | Thermal insulating panel for use in an insulative container and method of making said panel | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5849818A | Skin sulfonated particles in matrices | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4923753A | Controlled-release compositions for acids | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4220739A | Method for sulfonating organic materials | Chemistry; Metallurgy | 25 | Expired |
| US4615914A | Treatment of the interior surfaces of resinous enclosure members | Chemistry; Metallurgy | 25 | Expired |
| US4000246A | Removal of gases from an enclosed space using metal hydrocarbyl oxides | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4260225A | Energy saving radiant insulative device | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4457977A | Metallized plastic articles | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4915912A | Apparatus for the generation of sulfur trioxide reagent and sulfonation of the surface of polymeric resins | Chemistry; Metallurgy | 16 | Expired |
| US3996725A | Apparatus for filling and hermetically sealing thermoplastic containers under vacuum | Performing Operations; Transporting | 15 | Expired |
| US5030399A | Method of in-mold sulfonation of molded plastic article | Performing Operations; Transporting | 13 | Expired |
| US4902493A | Process for the generation of sulfur trioxide reagent and sulfonation of the surface of polymeric resins | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5261764A | In situ conversion of a single walled tank to a double walled tank | Performing Operations; Transporting | 13 | Expired |
| US4775587A | Treatment of the interior surfaces of resinous enclosure members | Emerging Cross-Sectional Technologies | 12 | Expired |
| US3959561A | Transparent astatic resinous articles and method for their production | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4533484A | Pigments for toiletries | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6485683B1 | Headquarter vehicles for chemical biological nuclear defense | Human Necessities | 8 | Expired |
| US5233081A | Method for sulfonation using porous absorber material | Chemistry; Metallurgy | 7 | Expired |
| US5478540A | Removal of mercury heavy metal values employing sulfur trioxide | Chemistry; Metallurgy | 6 | Expired |
| US4462865A | Delignification of lignocellulosic materials with 2-imidazolidinones and 2-oxazolidinones | Textiles; Paper | 5 | Expired |
| US4613524A | Open-cell composition and method of making same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4647498A | Open-cell composition and method of making same | Emerging Cross-Sectional Technologies | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.