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Patent Assignment Assignor Details

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Assignor Name : BH COLUMBIA, INC.

Total Assignments: 6

Assignment: 1

Reel/Frame:	012211/0929			Pages:	11
		Recorded:	12/04/2001
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

BH COLUMBIA, INC.

Exec Dt:

11/05/2001

Assignee

COLUMBIA INSURANCE COMPANY

C/O MARK D. HAMBURG, CHIEF FINANCIAL OFFICER

BERKSHIRE HATHAWAY, 1440 KIEWIT PLAZA

OMAHA, NEBRASKA 68131

Properties

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4427145	NONE		06337455	4483120	NONE		06381220	4475328	NONE		06402376
4524960	NONE		06507300	4648216	NONE		06517333	4562683	NONE		06595514
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5884448	NONE		08702238	5854747	NONE		08727900	5833222	NONE		08733760
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6260263	NONE		08943963	5933957	NONE		08951116	6317980	US20010015015		08953914
6067769	NONE		08966002	5987828	NONE		08989285	5992125	NONE		09005781
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6256862	NONE		09347326	6260327	NONE		09356537	6148583	NONE		09451748
6112968	NONE		09483284	6401422	NONE		09499103	6393794	NONE		09523550
6418601	NONE		09547507	6171403	NONE		09552569	RE37797	NONE		09553414
6651306	NONE		09596138	6405916	NONE		09612813	6397527	NONE		09681151
6389762	US20010004815		09760912	D414400	NONE		29095767	D419430	NONE		29095768

Correspondence name and address
	SENNIGER POWERS LEAVITT & ROEDEL
	KURT F. JAMES
	ONE METROPOLITAN SQUARE, 16TH FLOOR
	ST. LOUIS, MO 63102

Assignment: 2

Reel/Frame:	013484/0264			Pages:	8
		Recorded:	03/17/2003
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

BH COLUMBIA, INC.

Exec Dt:

10/30/2002

Assignee

COLUMBIA INSURANCE COMPANY

3024 HARNEY STREET

OMAHA, NEBRASKA 68131

Properties

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

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Pat #

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Intl #

App #

5660341

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Correspondence name and address
	BRINKS HOFER GILSON & LIONE
	THOMAS L. HOLT
	P.O. BOX 10395
	CHICAGO, IL 60610

Assignment: 3

Reel/Frame:	013579/0331			Pages:	4
		Recorded:	04/16/2003
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

BH COLUMBIA, INC.

Exec Dt:

10/30/2002

Assignee

COLUMBIA INSURANCE COMPANY

3024 HARNEY STREET

OMAHA, NEBRASKA 68131

Properties

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

App #

6484341

US20020116767

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NONE

29163573

Correspondence name and address
	BRINKS HOFER GILSON & LIONE
	THOMAS L. HOLT
	P.O. BOX 10395
	CHICAGO, IL 60610

Assignment: 4

Reel/Frame:	013902/0403			Pages:	5
		Recorded:	11/05/2002
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

BH COLUMBIA, INC.

Exec Dt:

10/30/2002

Assignee

COLUMBIA INSURANCE COMPANY

3024 HARNEY STREET

OMAHA, NEBRASKA 68131

Properties

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

App #

6484341

US20020116767

09795647

6536819

US20020117869

09795695

7065038

NONE

09796047

6539848

US20030005832

10151711

D467126

NONE

29142182

D465386

NONE

29144688

D468965

NONE

29144723

D474020

NONE

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D483218

NONE

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D481583

NONE

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D468871

NONE

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D478477

NONE

29163569

D481262

NONE

29163573

Correspondence name and address
	BRINKS HOFER GILSON & LIONE
	THOMAS L. HOLT
	P.O. BOX 10395
	CHICAGO, IL 60610

Assignment: 5

Reel/Frame:	013736/0577			Pages:	3
		Recorded:	02/03/2003
Conveyance:	ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).

Assignor

BH COLUMBIA, INC.

Exec Dt:

01/23/2003

Assignee

COLUMBIA INSURANCE COMPANY

3042 HARNEY STREET

OMAHA, NEBRASKA 68131

Properties

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

App #

NONE

US20040003760

10190861

D488352

NONE

29163572

Correspondence name and address
	BRINKS HOFER GILSON & LIONE
	THOMAS HOLT
	P.O. BOX 10395
	CHICAGO, IL 60610

Assignment: 6

Reel/Frame:	014523/0558			Pages:	14
		Recorded:	09/29/2003
Conveyance:	CONFIRMATORY ASSIGNMENT

Assignor

BH COLUMBIA, INC.

Exec Dt:

09/10/2003

Assignee

COLUMBIA INSURANCE COMPANY

BERKSHIRE HATHAWAY, 1440 KIEWIT PLAZA

C/O MARK D. HAMBURG CHIEF FINANCIAL OFFICER

OMAHA, NEBRASKA 68131

Properties

Pat #

Pub #

Intl #

App #

Pat #

Pub #

Intl #

App #

6171043

NONE

09342292

6330963

NONE

09419582

Correspondence name and address
	SENNIGER POWERS LEAVITT & ROEDEL
	KURT F. JAMES
	ONE METROPOLITANS SQUARE
	16TH FLOOR
	ST. LOUIS, MO 63102

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