Manual of U.S. Patent Classification
as of June 30, 2000

Class
588
HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT

Class definitions may be accessed by clicking on the class title, above.
Subclass definitions may be accessed by clicking on the subclass number, below.

Patents classified in a subclass may be accessed by clicking on the " " icon following the subclass number, below.

( please note that links to definitions and classified patents may not be available for some classes and subclasses )

For search strategies, please refer to the Classification Index Explanation of Data web page.

Subclass		Title
ClassTitle		===> HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT
1		DESTRUCTION OR CONTAINMENT OF RADIOACTIVE WASTE
2		. By fixation in stable solid media
3		. . Cement, concrete, or hydraulic setting
4		. . . With additional solid material to enhance fixation of radioactivity
5		. . Bituminous
6		. . Resin or polymer; e.g., cellulose, polyethylene
7		. . . Ion exchange resin
8		. . . Polymer derived from ethylenically unsaturated monomer
9		. . Clay or claylike
10		. . Ceramic or ceramiclike
11		. . . Glass, glasslike, vitreous
12		. . . . Boron containing
13		. . Ion exchange material
14		. . Silicon containing
15		. . Metal containing
16		. Surrounding with specified material or structure
17		. Geological or extraterrestrial
18		. Chemical conversion to a stable solid for disposal
19		. . Incineration, calcination, pyrolyzing to obtain solid residue
20		. Treating radioactive liquid
200		CHEMICAL OR GERM WARFARE AGENTS DESTROYED
201		MOLTEN MEDIA USED (E.G., METAL)
202		EXPLOSIVES, PROPELLANTS, OR PYROTECHNICS DESTROYED
203		. Using added reactive material (e.g., acids bases, hydrogen, etc.)
204		ELECTRODIALYSIS OR ELECTROLYTIC DEGRADATION OR CONVERSION
205		ORGANIC SUBSTANCE DESTROYED
206		. Halogen attached directly to carbon by nonionic bonding
207		. . Halogen attached directly to benzene ring by nonionic bonding (e.g., PCB`s)
208		. . . Hydropyrolysis or destructive steam gasification
209		. . . Heating or vacuum used to drive off or produce a volatile substance
210		. . . Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
211		. . . . Using a gaseous heat carrier
212		. . Using ionizing radiation, electrical energy, magnetic force, radiaiton, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
213		. . Heating or vacuum used to drive off or produce a volatile substance (e.g., hydropyrolysis or destructive steam gasification)
214		. . . Using a gaseous heat carrier
215		. Chalcogen containing (O, S, Se, or Te)
216		. . Heating or vacuum used to drive off or produce a volatile substance
217		. . . Using a gaseous heat carrier
218		. . Reacting with chemical agents
219		. . . Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
220		. Heating or vacuum used to drive off or produce a volatile substance from waste containing N, P, As, Sb, or Bi
221		. Reacting waste containing N, P, As, Sb, or Bi with chemical agents
222		. . Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
223		. Metal containing
224		. . Reacting with chemical agents
225		. . . Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
226		. Hydropyrolysis or destructive steam gasification
227		. Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
228		. Heating or vacuum used to drive off or produce a volatile substance
229		. . Using a solid heat carrier
230		. . Using a gaseous heat carrier
231		HEAVY METAL CONTAINING SUBSTANCE DESTROYED
232		. Magnetic separation
233		. Hydropyrolysis or destructive steam gasification
234		. Heating or vacuum used to drive off or produce a volatile substance
235		. . Using a gaseous heat carrier
236		. Reacting with chemical agents
237		. . Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
238		CHALCOGEN CONTAINING SUBSTANCE DESTROYED (O, S, Se, or Te)
239		. Hydropyrolysis or destructive steam gasification
240		. Heating or vacuum used to drive off or produce a volatile substance
241		. . Using a gaseous heat carrier
242		. Reacting with chemical agents
243		. . Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic)
244		N OR P CONTAINING SUBSTANCE DESTROYED
245		. Heating or vacuum used to drive off or produce a volatile substance
246		. Reacting with chemical agents
247		. . Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, and ultrasonic)
248		HALIDE CONTAINING SUBSTANCE DESTROYED
249		CONTAINMENT
250		. Geologic marine or extraterrestial storage and containment (e.g., tetonic, volcanic, deep natural, manmade earth cavity, submarine placement sites, lunar, earth orbital, and solar placement)
251		. Treating a solid (e.g., clay, slag, spent sorbent, active carbon, etc.) to prevent gas emissions
252		. Solidification, vitrification, or cementation
253		. . In situ vitrification
254		. . Contains asbestos
255		. . Polymer or resin containing (e.g., foam, etc.)
256		. . Waste contains heavy metal (e.g., fly, ash, flue dust, and incinerator ash)
257		. . . And confined in a cement type material (e.g., concrete)
258		. Storage to contain pathogenic organisms (e.g., virus, bacteria, and medical waste)
259		. Secondary containment
260		. With sensing, detecting, or monitoring
261		MISCELLANEOUS
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		CROSS-REFERENCE ART COLLECTIONS
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900		APPARATUS
901		COMPOSITIONS

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Last Modified: 6 October 2000