Covered Property (1)

Related Assignments (10)

Other recorded transfers of the patent in this record — the chain of ownership.

Security Agreement Aug 26, 2003

From: DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.

To: FIRST SOURCE FINANCIAL, INC., AS AGENT

Reel/Frame 014409/0331 →

Security Agreement May 24, 2007

From: DT-HP TEXAS OPERATING CORPORATION; DT-HP PATENTS AND TECHNOLOGIES CORPORATION

To: AMEGY BANK NATIONAL ASSOCIATION

Reel/Frame 019331/0756 →

Assignment of Assignor's Interest Jun 11, 2007

From: DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC., A DELAWARE CORPORATION; DRILLTEC TECHNOLOGIES, L.P., A DELAWARE LIMITED PARTNERSHIP

To: DT-HP PATENTS AND TECHNOLOGIES CORPORATION, A DELAWARE CORPORATION

Reel/Frame 019407/0123 →

Change of Name Dec 13, 2007

From: DT-HP PATENTS AND TECHNOLOGIES CORPORATION

To: DRILLTEC PATENTS & TECHNOLOGIES CORPORATION

Reel/Frame 020243/0443 →

Release of Security Interest Mar 15, 2012

From: ORCHARD FIRST CAPITAL, INC. (F/K/A/ FIRST SOURCE FINANCIAL INC.)

To: DRILLTEC PATENT AND TECHNOLOGIES COMPANY, INC.

Reel/Frame 027873/0599 →

Release of Security Interest Mar 20, 2012

From: AMEGY BANK NATIONAL ASSOCIATION

To: DRILLTEC PATENT AND TECHNOLOGIES COMPANY, INC. (FKA DT-HP TEXAS OPERATING CORP. AND DT-HP PATENTS AND TECHNOLOGIES CORP.)

Reel/Frame 027897/0579 →

Security Agreement Jul 13, 2012

From: DRILLTEC PATENTS & TECHNOLOGIES CORPORATION

To: COMERICA BANK, A TEXAS BANKING ASSOCIATION

Reel/Frame 028550/0321 →

Security Interest Jun 12, 2014

From: DRILLTEC PATENTS & TECHNOLOGIES CORPORATION

To: PNC BANK, NATIONAL ASSOCIATION

Reel/Frame 033134/0802 →

Release of Security Interest Jun 14, 2014

From: COMERICA BANK

To: DRILLTEC PATENTS & TECHNOLOGIES CORPORATION

Reel/Frame 033166/0218 →

Security Interest Nov 13, 2014

From: DRILLTEC PATENTS & TECHNOLOGIES CORPORATION

To: PNC BANK, NATIONAL ASSOCIATION

Reel/Frame 034163/0261 →