JH

John David Hanby

UN Unknown: 3 patents #7,366 of 83,584Top 9%
📍 Katy, TX: #544 of 2,042 inventorsTop 30%
🗺 Texas: #33,546 of 125,132 inventorsTop 30%
Overall (All Time): #1,188,566 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10077654 Platform device for sampling and chemical reaction spectrophotometry of drilling fluid 2018-09-18
9802183 Diffusion/chemical reaction/spectrometric device for the analysis of petroleum hydrocarbons in environmental and geological formation samples 2017-10-31
9448220 Spectrometric device for the analysis of environmental and geological samples 2016-09-20
4992379 Field test for aromatics in groundwater 1991-02-12