Inventor

PENA ROBERT

US4 patents

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

LITMUS CONCEPTS INC

1 patent

US6451607B1Sep 17, 2002

External dried-reagent control for analytical test devices

LITMUS CONCEPTS INC37 citations90

(unassigned)

1 patent

US6301726B1Oct 16, 2001

Method of installing a bathtub

5 citations54

HEDRICK MARCELLE H

1 patent

US11078747B2Aug 3, 2021

Mechanism for retaining and releasing pump down plug

HEDRICK MARCELLE H0 citations48

KRUEGER MATTHEW

1 patent

US11313190B2Apr 26, 2022

Electric set tieback anchor via pressure cycles

KRUEGER MATTHEW0 citations46