Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001209191-09-023645
Filing Date
2009-04-30
Accepted
2009-04-30 20:51:30
Documents
1
Period of Report
2009-04-28

Document Format Files

Seq Description Document Type Size
1 FORM 4 SUBMISSION doc4.html 4  
1 FORM 4 SUBMISSION doc4.xml 4 7817
  Complete submission text file 0001209191-09-023645.txt   9681
Mailing Address P O DRAWER 1416 SNYDER TX 79550
Business Address 4510 LAMESA HWY P O DRAWER 1416 SNYDER TX 79549 9155731104
PATTERSON UTI ENERGY INC (Issuer) CIK: 0000889900 (see all company filings)

EIN.: 752504748 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 1381 Drilling Oil & Gas Wells

Mailing Address DISCOVERY LABORATORIES INC 350 S MAIN ST STE 307 DOYLESTOWN PA 18901
Business Address
SIEGEL MARK S (Reporting) CIK: 0000919501 (see all company filings)

Type: 4 | Act: 34 | File No.: 000-22664 | Film No.: 09786332