American Colloid Company
121Patents
0Active
121Granted
44Portfolio score
Filing activity: May 23, 1974 → Jun 4, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4836940A | Composition and method of controlling lost circulation from wellbores | Emerging Cross-Sectional Technologies | 176 | Expired |
| US4975841A | Method and apparatus for reporting customer data | Emerging Cross-Sectional Technologies | 153 | Expired |
| US4919989A | Article for sealing well castings in the earth | Emerging Cross-Sectional Technologies | 122 | Expired |
| US4824901A | Surface treated absorbent polymers | Chemistry; Metallurgy | 100 | Expired |
| US4985518A | Process for preparing water-absorbing resins | Chemistry; Metallurgy | 100 | Expired |
| US4936386A | Method for sealing well casings in the earth | Emerging Cross-Sectional Technologies | 86 | Expired |
| US4810573A | Self-healing bentonite sheet material composite article | Emerging Cross-Sectional Technologies | 74 | Expired |
| US5221290A | Charcoal briquettes bound with an organic binder and a water-swellable clay and method | Chemistry; Metallurgy | 71 | Expired |
| US4525527A | Production process for highly water absorbable polymer | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5346566A | Water barrier of water-swellable clay or other abrasive material sandwiched between interconnected layers of flexible fabric sewn or needled together using a lubricant and/or a liquid adhesive | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5237945A | Water barrier formed from a clay-fiber mat | Emerging Cross-Sectional Technologies | 55 | Expired |
| US4613542A | Method of impregnating a water-penetrable article with a swell-inhibited water swellable clay slurry | Emerging Cross-Sectional Technologies | 54 | Expired |
| US5503111A | Animal dross absorbent and method | Human Necessities | 53 | Expired |
| US5174231A | Water-barrier of water-swellable clay sandwiched between interconnected layers of flexible fabric needled together using a lubricant | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4733989A | Self-healing bentonite sheet material composite drainage structure | Chemistry; Metallurgy | 50 | Expired |
| US5000115A | Animal dross absorbent and method | Human Necessities | 48 | Expired |
| US5389166A | Water barrier formed from a clay-fiber mat | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4755562A | Surface treated absorbent polymers | Chemistry; Metallurgy | 47 | Expired |
| US4703067A | Process for preparing dry solid water absorbing polyacrylate resin | Chemistry; Metallurgy | 46 | Expired |
| US4624982A | Method of temporarily inhibiting the swellability of water swellable clays and compositions | Chemistry; Metallurgy | 46 | Expired |
| US4552938A | Process for preparing dry solid water absorbing polyacrylate resin | Chemistry; Metallurgy | 45 | Expired |
| US5034045A | Liquid crop stimulant | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5452684A | Method of agglomerating a smectite clay litter | Human Necessities | 43 | Expired |
| US5129365A | Animal dross absorbent and method | Human Necessities | 43 | Expired |
| US5476142A | Flexible contaminant-resistant grout composition and method | Performing Operations; Transporting | 43 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.