Family

Loading Family data...

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

Patent Owner(s)

Patent Owner	Address
W R GRACE & CO -CONN	7500 GRACE DRIVE COLUMBIA MD 21044

International Classification(s)

• C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chun, Byong-Wa	Kanagawa, JP	26	618
Darwin, David C	Columbia, MD	6	280
Gartner, Ellis M	Silver Spring, MD	21	666
Koyata, Hideo	Kanagawa, JP	20	662
Kuo, Lawrence L	Columbus, MD	29	378

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: 5393343

Cement and cement composition having improved rheological properties

---

 

Legal Events