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Class Information
Number: 134/10
Name: Cleaning and liquid contact with solids > Processes > Including regeneration, purification, recovery or separation of agent used
Description: Processes in which the treating agent used is subjected to a treatment after use to (1) regenerate the same, (2) purify the same in any way, (3) recover the same, or (4) separate the same from contaminants derived from any source (usually the work treated whether the agent is to be reused or not, and even though the ingredients separated from the work are recovered for use). The removal of the work from the treating agent is not considered as any of such operations.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6049021 |
Method for remediating sites contaminated with toxic waste |
Apr. 11, 2000 |
| 6045621 |
Method for cleaning objects using a fluid charge |
Apr. 4, 2000 |
| 6045698 |
Method for cleaning a filtration installation of the type with immersed membranes |
Apr. 4, 2000 |
| 6041796 |
Apparatus for drying objects with fluids |
Mar. 28, 2000 |
| 6036870 |
Method of wellbore fluid recovery using centrifugal force |
Mar. 14, 2000 |
| 6036864 |
Process for reducing water consumption during wet processing of textiles |
Mar. 14, 2000 |
| 6033485 |
Process for the pickling of metallic materials |
Mar. 7, 2000 |
| 6017397 |
Automated washing method |
Jan. 25, 2000 |
| 6017398 |
Immersed metal cleaning by subjecting object to natural resonant frequency |
Jan. 25, 2000 |
| 6013185 |
Recovery and reuse of nonionic surfactants from aqueous solutions |
Jan. 11, 2000 |
| 6013138 |
Method for cleaning a pipe with a vehicle |
Jan. 11, 2000 |
| 6006763 |
Surface treatment method |
Dec. 28, 1999 |
| 6004401 |
Method for cleaning a semiconductor structure |
Dec. 21, 1999 |
| 6004403 |
Solvent cleaning system |
Dec. 21, 1999 |
| 6004466 |
Recovery and reuse of sugar-derived nonionic surfactants from aqueous solutions |
Dec. 21, 1999 |
| 6004434 |
Method of recycling cleaning solvent |
Dec. 21, 1999 |
| 6001216 |
Apparatus and methods for rerecirculating etching solution during semiconductor wafer processing |
Dec. 14, 1999 |
| 6001190 |
Reduced energy cleaning appliance |
Dec. 14, 1999 |
| 6001189 |
Method for reducing gaseous species of contamination in wet processes |
Dec. 14, 1999 |
| 5989359 |
Method for drying objects with fluids |
Nov. 23, 1999 |
| 5989355 |
Apparatus for cleaning and testing precision components of hard drives and the like |
Nov. 23, 1999 |
| 5980644 |
Method of cleaning of spills of oil and oil products from surfaces, an adsorbent for cleaning of surfaces, and a method for making the adsorbent |
Nov. 9, 1999 |
| 5976264 |
Removal of fluorine or chlorine residue by liquid CO.sub.2 |
Nov. 2, 1999 |
| 5976268 |
Method and apparatus for pressure washing |
Nov. 2, 1999 |
| 5964955 |
System for coupling operating equipment to a washer |
Oct. 12, 1999 |
| 5961734 |
Methods for purging process lines of additives for thermoplastic materials |
Oct. 5, 1999 |
| 5961733 |
Parts washing system |
Oct. 5, 1999 |
| 5951204 |
Process to decontaminate soil |
Sep. 14, 1999 |
| 5944996 |
Cleaning process using carbon dioxide as a solvent and employing molecularly engineered surfactants |
Aug. 31, 1999 |
| 5935341 |
Method and apparatus for closed-coop pressure washing |
Aug. 10, 1999 |
| 5928517 |
Water-soluble polymers for recovery of metals from solids |
Jul. 27, 1999 |
| 5928434 |
Method of mitigating electrostatic charge during cleaning of electronic circuit boards |
Jul. 27, 1999 |
| 5925192 |
Dry-cleaning of garments using gas-jet agitation |
Jul. 20, 1999 |
| 5909743 |
Automatic purge filtration system for a dishwasher |
Jun. 8, 1999 |
| 5908040 |
Method of cleaning boats that have been contaminated with oil and gas well drilling fluids and hazardous waste |
Jun. 1, 1999 |
| 5908041 |
Method for cleaning a photoresist developer spray stream nozzle |
Jun. 1, 1999 |
| 5904737 |
Carbon dioxide dry cleaning system |
May. 18, 1999 |
| 5901368 |
Radiolysis-assisted decontamination process |
May. 4, 1999 |
| 5894853 |
Cleaning method for removal of contaminants |
Apr. 20, 1999 |
| 5891347 |
Centrifugal filtration method and apparatus therefor |
Apr. 6, 1999 |
| 5891257 |
Tool for removing protective encapsulants |
Apr. 6, 1999 |
| 5888312 |
Cleaning method |
Mar. 30, 1999 |
| 5888311 |
Process for cleaning factory equipment with integrated prerinse |
Mar. 30, 1999 |
| 5882524 |
Treatment of oil-contaminated particulate materials |
Mar. 16, 1999 |
| 5882429 |
Method of soil remediation by concurrent removal of hydrocarbons and fixation of heavy metals |
Mar. 16, 1999 |
| 5879471 |
Method for repositioning produce during washing |
Mar. 9, 1999 |
| 5876511 |
Method for cleaning and rinsing containers |
Mar. 2, 1999 |
| 5876510 |
Process for cleaning articles |
Mar. 2, 1999 |
| 5877027 |
Method for the analysis of impurity contents in silicon dioxide |
Mar. 2, 1999 |
| 5873944 |
Vacuum waste pipe cleaning |
Feb. 23, 1999 |
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