Nalco Chemical Company
1,174Patents
0Active
1,174Granted
47Portfolio score
Filing activity: Nov 2, 1970 → Oct 15, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5648508A | Crystalline metal-organic microporous materials | Performing Operations; Transporting | 152 | Expired |
| US5342530A | Clay stabilizer | Emerging Cross-Sectional Technologies | 144 | Expired |
| US4783314A | Fluorescent tracers - chemical treatment monitors | Emerging Cross-Sectional Technologies | 133 | Expired |
| US5230833A | Low sodium, low metals silica polishing slurries | Emerging Cross-Sectional Technologies | 118 | Expired |
| US5494588A | Method and composition for inhibiting growth of microorganisms including peracetic acid and a second organic biocide | Emerging Cross-Sectional Technologies | 117 | Expired |
| US4417992A | Dust control | Emerging Cross-Sectional Technologies | 115 | Expired |
| US5221435A | Papermaking process | Textiles; Paper | 112 | Expired |
| US5785867A | Method and composition for inhibiting growth of microorganisms including peracetic acid and a non-oxidizing biocide | Chemistry; Metallurgy | 112 | Expired |
| US5411889A | Regulating water treatment agent dosage based on operational system stresses | Emerging Cross-Sectional Technologies | 108 | Expired |
| US5462972A | Superabsorbent polymer having improved absorption rate and absorption under pressure | Human Necessities | 104 | Expired |
| US4643801A | Papermaking aid | Textiles; Paper | 100 | Expired |
| US5171450A | Monitoring and dosage control of tagged polymers in cooling water systems | Emerging Cross-Sectional Technologies | 99 | Expired |
| US5658467A | Method and composition for inhibiting growth of microorganisms including peracetic acid and a non-oxidizing biocide | Emerging Cross-Sectional Technologies | 96 | Expired |
| US5314420A | Superabsorbent polymer having improved absorption rate and absorption under pressure | Human Necessities | 95 | Expired |
| US5098520A | Papermaking process with improved retention and drainage | Textiles; Paper | 93 | Expired |
| US4795574A | Low temperature breakers for gelled fracturing fluids | Emerging Cross-Sectional Technologies | 92 | Expired |
| US5126014A | Retention and drainage aid for alkaline fine papermaking process | Textiles; Paper | 85 | Expired |
| US4169337A | Process for polishing semi-conductor materials | Electricity | 85 | Expired |
| US4097427A | Cationization of starch utilizing alkali metal hydroxide, cationic water-soluble polymer and oxidant for improved wet end strength | Textiles; Paper | 83 | Expired |
| US4992380A | Continuous on-stream monitoring of cooling tower water | Emerging Cross-Sectional Technologies | 82 | Expired |
| US4806345A | Cross-linked cationic polymers for use in personal care products | Human Necessities | 81 | Expired |
| US5451613A | Superabsorbent polymer having improved absorption rate and absorption under pressure | Human Necessities | 80 | Expired |
| US5266186A | Inhibiting fouling employing a dispersant | Emerging Cross-Sectional Technologies | 78 | Expired |
| US6255118A | Method for using an all solid-state fluorometer in industrial water system applications | Emerging Cross-Sectional Technologies | 77 | Expired |
| US5154713A | Enhancing absorption rates of superabsorbents by incorporating a blowing agent | Chemistry; Metallurgy | 76 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.