Irl E. Ward
43Patents
21h-index
16Co-inventors
82Inventor score
Filing activity: Aug 17, 1982 → Sep 23, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5571447A | Stripping and cleaning composition | Chemistry; Metallurgy | 84 | Expired |
| US4770713A | Stripping compositions containing an alkylamide and an alkanolamine and use thereof | Physics | 72 | Expired |
| US5419779A | Stripping with aqueous composition containing hydroxylamine and an alkanolamine | Chemistry; Metallurgy | 72 | Expired |
| US5417877A | Organic stripping composition | Physics | 67 | Expired |
| US5698503A | Stripping and cleaning composition | Chemistry; Metallurgy | 64 | Expired |
| US5563119A | Stripping compositions containing alkanolamine compounds | Chemistry; Metallurgy | 52 | Expired |
| US5709756A | Basic stripping and cleaning composition | Emerging Cross-Sectional Technologies | 48 | Expired |
| US5496491A | Organic stripping composition | Physics | 46 | Expired |
| US4428871A | Stripping compositions and methods of stripping resists | Physics | 45 | Expired |
| US5556482A | Method of stripping photoresist with composition containing inhibitor | Chemistry; Metallurgy | 41 | Expired |
| US4992108A | Photoresist stripping compositions | Chemistry; Metallurgy | 41 | Expired |
| US4403029A | Stripping compositions and methods of stripping resists | Physics | 38 | Expired |
| US5554312A | Photoresist stripping composition | Chemistry; Metallurgy | 33 | Expired |
| US4401747A | Stripping compositions and methods of stripping resists | Physics | 32 | Expired |
| US4680133A | Stripping composition containing an amide and a carbonate and use thereof | Chemistry; Metallurgy | 31 | Expired |
| US4395479A | Stripping compositions and methods of stripping resists | Physics | 30 | Expired |
| US5139607A | Alkaline stripping compositions | Chemistry; Metallurgy | 28 | Expired |
| US5597420A | Stripping composition having monoethanolamine | Chemistry; Metallurgy | 28 | Expired |
| US5997658A | Aqueous stripping and cleaning compositions | Chemistry; Metallurgy | 23 | Expired |
| US5988186A | Aqueous stripping and cleaning compositions | Chemistry; Metallurgy | 23 | Expired |
| US4401748A | Stripping compositions and methods of stripping resists | Chemistry; Metallurgy | 23 | Expired |
| US5753601A | Organic stripping composition | Chemistry; Metallurgy | 21 | Expired |
| US6828289B2 | Low surface tension, low viscosity, aqueous, acidic compositions containing fluoride and organic, polar solvents for removal of photoresist and organic and inorganic etch residues at room temperature | Electricity | 19 | Expired |
| US7381690B1 | Stable aqueous slurry suspensions | Chemistry; Metallurgy | 19 | Expired |
| US5928430A | Aqueous stripping and cleaning compositions containing hydroxylamine and use thereof | Chemistry; Metallurgy | 19 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.