Patent Inventor: Steven L. Schwegman

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Pump valve retainer
Inventor: Schwegman | Patent Number: 7954510

Pump valve retainer
Inventor: Schwegman | Patent Number: 7681589

Coiled tubing swivel with stepped bearing races
Inventor: Ungchusri, et al. | Patent Number: 6595555

Coiled tubing inflatable packer with circulating port
Inventor: Tucker, et al. | Patent Number: 5456322

Positive circulating valve with retrievable standing valve
Inventor: Holder, et al. | Patent Number: 5396953

Coiled tubing inflatable packer with circulating port
Inventor: Tucker, et al. | Patent Number: 5383520

Jetting tool
Inventor: Szarka, et al. | Patent Number: 5029644

Wash tool
Inventor: Schwegman | Patent Number: 4991653

Well completions using casing valves
Inventor: Szarka, et al. | Patent Number: 4949788

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