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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
ROHM GMBH	64293 DARMSTADT

International Classification(s)

• C14C:CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g....

• 1990 Application Filing Year
• C14C Class
• 8 Applications Filed
• 0 Patents Issued To-Date
• 0 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Christner, Juergen	Seeheim-Jugenheim, DE	18	113
# of filed Patents : 18 Total Citations : 113
Pfleiderer, Ernst	Darmstadt, DE	27	213
# of filed Patents : 27 Total Citations : 213
Taeger, Tilman	Seeheim-Jugenheim, DE	12	139
# of filed Patents : 12 Total Citations : 139

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Patent Citation Ranking

• 5 Citation Count
• C14C Class

• 0 % this patent is cited more than
• 33 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent No: 5089414

Enzymatic soaking method

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Abstract

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The soaking of hides and skins is enzymatically assisted in a method using an aqueous float having a pH from 9 to 11 which contains A) a lipase having an activity optimum in the pH region from 9 to 11, B) a protease with activity in the pH region from 9 to 11, and C) a surface active agent.

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Description

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Claims

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Legal Events

 

• FPAY2003
• FPAY1999
• FEPP1998
• FPAY1995
• I1992
• STCF1992
• F1990
• AS1990
• PD1989

Date	Code	Event	Description
May 15, 2003	FPAY	FEE PAYMENT	year of fee payment: 12
Jun 01, 1999	FPAY	FEE PAYMENT	year of fee payment: 8
Dec 06, 1998	FEPP	FEE PAYMENT PROCEDURE	free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY
Jun 19, 1995	FPAY	FEE PAYMENT	year of fee payment: 4
Feb 18, 1992	I	Issuance
Feb 05, 1992	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
May 24, 1990	F	Filing
May 16, 1990	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:CHRISTNER, JUERGEN;PFLEIDERER, ERNST;TAEGER, TILMAN;REEL/FRAME:005834/0586 Owner name: ROHM GMBH Effective Date: May 16, 1990
Jul 11, 1989	PD	Priority Date