Growing community of inventors

Beaconsfield, United Kingdom

Douglas J Grimes

Average Co-Inventor Count = 5.62

ph-index = 3

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 173

Douglas J GrimesHeinz Mueller (3 patents)Douglas J GrimesClaus-Peter Herold (3 patents)Douglas J GrimesStephan Von Tapavicza (2 patents)Douglas J GrimesStuart P Smith (2 patents)Douglas J GrimesJean-Marc Braun (2 patents)Douglas J GrimesMalcolm Ellice (1 patent)Douglas J GrimesStephan Von Tapavizca (1 patent)Douglas J GrimesDouglas J Grimes (3 patents)Heinz MuellerHeinz Mueller (44 patents)Claus-Peter HeroldClaus-Peter Herold (42 patents)Stephan Von TapaviczaStephan Von Tapavicza (32 patents)Stuart P SmithStuart P Smith (2 patents)Jean-Marc BraunJean-Marc Braun (2 patents)Malcolm ElliceMalcolm Ellice (1 patent)Stephan Von TapavizcaStephan Von Tapavizca (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Henkel Ag & Company, Kgaa (3 from 4,427 patents)

2. Baroid Limited (2 from 3 patents)


3 patents:

1. 5755892 - Waste disposal of contaminated drill cuttings from geological drilling

2. 5252554 - Drilling fluids and muds containing selected ester oils

3. 5232910 - Use of selected ester oils in drilling fluids and muds

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as of
1/22/2026
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