Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Subclass:: SEPARATION

Filing statistics

IPC B01D 3/00 belongs to the parent subclass B01D, which recorded 1,309,454 patent applications worldwide between 2013 and 2023. Annual filings grew from 46,604 in 2013 to 187,276 in 2023 (+302%), peaking at 197,396 applications in 2020. The most active applicants in class B01 are SINOPEC (CHINA PETROCHEMICAL CORPORATION) (16,893 applications), CHINESE ACADEMY OF SCIENCES (11,733 applications) and BASF (BADISCHE ANILIN & SODA FABRIK) (3,898 applications).

Source: EPO PATSTAT, worldwide filings

Additional Content

Preparation of alcoholic beverages by distillation

Related Keywords

rectification of spirit ALCOHOL(S)DISTILLATION of fermented solutionsDISTILLATION in generalpreparing ETHANOL by distillation from fermented solutionsdistilling alcohol from products of FERMENTATIONRECTIFYING of spirit[= distillation apparatus]

9 direct subcodes

Child Classifications

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B01D 3/02 in boilers or stills
B01D 3/04 pipe stills
B01D 3/06 Flash distillation
B01D 3/08 in rotating vessels; Atomisation on rotating discs
B01D 3/1 Vacuum distillation
B01D 3/12 Molecular distillation
B01D 3/14 Fractional distillation
B01D 3/34 with one or more auxiliary substances
B01D 3/42 Regulation; Control

Top Applicants

Top 10 applicants by patent filingsfor class B01, 2013–2023, worldwide · Source: EPO PATSTAT

SINOPEC (CHINA PETROCHEMICAL CORPORATION) 16,893
CHINESE ACADEMY OF SCIENCES 11,733
BASF (BADISCHE ANILIN & SODA FABRIK) DE 3,898
LG CHEM KR 3,367
PETROCHINA COMPANY 3,224
IFPEN (IFP ENERGIES NOUVELLES) FR 3,042
ZHEJIANG UNIVERSITY 2,890
MANN + HUMMEL DE 2,740
JOHNSON MATTHEY GB 2,534
SAUDI ARABIAN OIL COMPANY SA 2,527