Family

Loading Family data...

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

Patent Owner(s)

• THE DOW CHEMICAL COMPANY

International Classification(s)

• B01D:SEPARATION

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Beck, Henry N	Walnut Creek, CA	19	461
Lundgard, Richard A	Antioch, CA	29	573
Mahoney, Robert D	Danville, CA	15	408
Wan, Hawk S	Antioch, CA	6	193

Cited Art Landscape

Load Citation

• No Cited Art to Display

Loading Cited Art Landscape...

Patent Citation Ranking

Forward Cite Landscape

Load Citation

• No Forward Cites to Display

Loading Forward Cite Landscape...

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: 5015275

Isotropic microporous syndiotactic polystyrene membranes and processes for preparing the same

---

 

Legal Events