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Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Assignor Name : SPRINGER, DAVID A.
Total Assignments: 10
Assignment: 1
Reel/Frame:003809/0991   Pages: 1
Recorded: 11/13/1980
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignor
1
SPRINGER, DAVID A.
Exec Dt:
02/03/1979
Assignee
1
ANCHOR HOCKING PREPARATION,
DELAWARE
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
4254824
NONE
06013789
Correspondence name and address
CONNOLLY & HUTZ
THE FARMERS BANK BLDG.
WILMINGTON, DEL. 19899
Assignment: 2
Reel/Frame:005677/0983   Pages: 2
Recorded: 03/25/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BOURNE, RICHARD C.
Exec Dt:
03/20/1991
2
SPRINGER, DAVID A.
Exec Dt:
03/20/1991
Assignee
1
DAVIS ENERGY GROUP, INC., 123 C STREET, DAVIS, CA., 95616
CALIFORNIA
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5131458
NONE
07674191
Correspondence name and address
THOMAS J. PARDINI
OLIFF & BERRIDGE
P.O. BOX 19928
ALEXANDRIA, VA. 22020
Assignment: 3
Reel/Frame:005710/0767   Pages: 2
Recorded: 05/13/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BOURNE, RICHARD C.
Exec Dt:
05/08/1991
2
SPRINGER, DAVID A.
Exec Dt:
05/08/1991
Assignee
1
DAVIS ENERGY GROUP, INC.
123 C STREET
DAVIS, CALIFORNIA 95616
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5174128
NONE
07699443
Correspondence name and address
OLIFF & BERRIDGE
P. O. BOX 19928
ALEXANDRIA, VA 22320
Assignment: 4
Reel/Frame:005898/0711   Pages: 2
Recorded: 10/28/1991
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST.
Assignors
1
BOURNE, RICHARD C.
Exec Dt:
10/22/1991
2
SPRINGER, DAVID A.
Exec Dt:
10/22/1991
3
HOESCHELE, MARC A.
Exec Dt:
10/22/1991
Assignee
1
DAVIS ENERGY GROUP, INC.
123 C STREET
DAVIS, CALIFORNIA 95616
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5220807
NONE
07750299
Correspondence name and address
OLIFF & BERRIDGE
P.O. BOX 19928
ALEXANDRIA, VA 22320
Assignment: 5
Reel/Frame:006842/0808   Pages: 4
Recorded: 02/01/1994
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
BOURNE, RICHARD C.
Exec Dt:
01/25/1994
2
SPRINGER, DAVID A.
Exec Dt:
01/25/1994
Assignee
1
ROOF SCIENCE CORPORATION
1950 FIFTH STREET
DAVIS, CALIFORNIA 95616
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
5174128
NONE
07699443
Correspondence name and address
THOMAS J. PARDINI
OLIFF & BERRIDGE
P.O. BOX 19928
ALEXANDRIA, VA 22320
Assignment: 6
Reel/Frame:015331/0906   Pages: 2
Recorded: 11/02/2004
Attorney Dkt #:120538
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
RAINER, LEO I.
Exec Dt:
10/25/2004
2
SPRINGER, DAVID A.
Exec Dt:
10/25/2004
Assignee
1
DAVIS ENERGY GROUP, INC.
123 'C' STREET
DAVIS, CALIFORNIA 95616
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7398821
US20020124992
09802883
Correspondence name and address
OLIFF & BERRIDGE, PLC
THOMAS J. PARDINI
P.O. BOX 19928
ALEXANDRIA, VA 22320
Assignment: 7
Reel/Frame:019475/0621   Pages: 2
Recorded: 05/29/2007
Attorney Dkt #:120538.01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPRINGER, DAVID A.
Exec Dt:
05/25/2007
2
RAINER, LEO I.
Exec Dt:
05/25/2007
Assignee
1
DAVIS ENERGY GROUP, INC.
123 C STREET
DAVIS, CALIFORNIA 95616
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7992630
US20070227721
11806059
Correspondence name and address
THOMAS J. PARDINI
OLIFF & BERRIDGE, PLC
P.O. BOX 19928
ALEXANDRIA, VA 22320
Assignment: 8
Reel/Frame:019404/0320   Pages: 2
Recorded: 05/29/2007
Attorney Dkt #:128453
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
LEE, BRIAN E.
Exec Dt:
05/29/2007
2
BARSUN, STEPHAN K.
Exec Dt:
05/29/2007
3
BOURNE, RICHARD C.
Exec Dt:
05/29/2007
4
HOESCHELE, MARC A.
Exec Dt:
05/29/2007
5
SPRINGER, DAVID A.
Exec Dt:
05/29/2007
Assignee
1
DAVIS ENERGY GROUP, INC.
123 C STREET
DAVIS, CALIFORNIA 95616
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
7596915
US20070289239
11806060
Correspondence name and address
THOMAS J. PARDINI
OLIFF & BERRIDGE, PLC
P.O. BOX 19928
ALEXANDRIA, VA 22320
Assignment: 9
Reel/Frame:023059/0062   Pages: 2
Recorded: 08/05/2009
Attorney Dkt #:119588.01
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SPRINGER, DAVID A.
Exec Dt:
07/27/2009
2
HOESCHELE, MARC A.
Exec Dt:
07/27/2009
3
PHILLIPS, JAMES H.
Exec Dt:
07/28/2009
Assignee
1
DAVIS ENERGY GROUP, INC.
123 C. STREET
DAVIS, CALIFORNIA 95616
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
8397522
US20090277193
12457840
Correspondence name and address
JAMES A. OLIFF
OLIFF & BERRIDGE, PLC
P.O. BOX 320850
ALEXANDRIA, VIRGINIA 22320-4850
Assignment: 10
Reel/Frame:026087/0514   Pages: 2
Recorded: 04/06/2011
Attorney Dkt #:144841
Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
Assignors
1
SHELDON, GREGORY S.
Exec Dt:
04/04/2011
2
SPRINGER, DAVID A.
Exec Dt:
04/05/2011
3
MCNEIL, JOSHUA B.
Exec Dt:
04/01/2011
Assignee
1
DAVIS ENERGY GROUP, INC.
123 C STREET
DAVIS, CALIFORNIA 95616 US
Property
 
Pat #
Pub #
Intl #
App #
 
 
 
 
 
 
 
 
 
 
 
9175873
US20110247694
13081019
Correspondence name and address
THOMAS J. PARDINI
OLIFF & BERRIDGE, PLC
P.O. BOX 320850
ALEXANDRIA, VA 22320-4850

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