Robert G. McDonald

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Argyle, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Lightweight, lattice structure horsehead for reciprocating pump unit
- Patent number 12,345,250
- Issue date Jul 1, 2025
- TRC Services, Inc.
- Darius J. Yakimchuk
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Multi-Bolt Clamshell Retainer for Wristpin on Rod Pump Unit
- Publication number 20240247708
- Publication date Jul 25, 2024
- TRC SERVICES, INC.
- Darius J. Yakimchuk
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Equalizer Bearing Assembly having Wedged Retainers
- Publication number 20240247652
- Publication date Jul 25, 2024
- TRC SERVICES, INC.
- Darius J. Yakimchuk
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Lightweight, Lattice Structure Horsehead for Reciprocating Pump Unit
- Publication number 20240247653
- Publication date Jul 25, 2024
- TRC SERVICES, INC.
- Darius J. Yakimchuk
- E21 - EARTH DRILLING MINING