P

Inventor

LINGAFELTER JERRY K

US5 patents
⚠️ This page may combine multiple inventors who share the name “LINGAFELTER JERRY K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WALKER NEER MFG CO

3 patents
US4366606AJan 4, 1983

Self-centering clamp for down-hole tubulars

WALKER NEER MFG CO44 citations91
US4407373AOct 4, 1983

Collapsible pedestal for drilling apparatus

WALKER NEER MFG CO3 citations61
US4406098ASep 27, 1983

Drilling ramp

WALKER NEER MFG CO3 citations53

APACHE CORP

2 patents
US4867236ASep 19, 1989

Compact casing tongs for use on top head drive earth drilling machine

APACHE CORP188 citations97
US5294228AMar 15, 1994

Automatic sequencing system for earth drilling machine

APACHE CORP146 citations96