Growing community of inventors

London, Canada

Michael J Grubb

Average Co-Inventor Count = 3.16

ph-index = 5

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 = 65

Michael J GrubbRichard A Robb (5 patents)Michael J GrubbJohn J Grubb (3 patents)Michael J GrubbJames T Asanger (3 patents)Michael J GrubbLee S Garretson (1 patent)Michael J GrubbMichael J Grubb (5 patents)Richard A RobbRichard A Robb (7 patents)John J GrubbJohn J Grubb (3 patents)James T AsangerJames T Asanger (3 patents)Lee S GarretsonLee S Garretson (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Herkules Equipment Corporation (2 from 12 patents)

2. Herrules Equipment Corporation (1 from 1 patent)

3. A.b.t. Equipment Manufacturing Ltd. (1 from 1 patent)

4. Herkules Equiptment Corp. (1 from 1 patent)

5. Abt Equipment and Manufacturing Ltd. (1 from 1 patent)

6. Herkules Equipment Company (1 from 1 patent)


5 patents:

1. 5485860 - Spray gun and associate parts washer and recycler

2. 5193561 - Apparatus having a fluid timer for cleaning paint from objects

3. 5174317 - Spray gun and associate parts washer and recycler

4. 4960142 - Paint cleaning apparatus

5. 4793369 - Spray gun and associate parts washer and recycler

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as of
12/29/2025
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