Growing community of inventors

Hartland, WI, United States of America

Karl K Holt

Average Co-Inventor Count = 1.47

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 = 69

Karl K HoltKevin J Connolly (4 patents)Karl K HoltGeorge W Bingley (4 patents)Karl K HoltFrank J Scott (1 patent)Karl K HoltJames R Schulz (1 patent)Karl K HoltCharles C Wicker (1 patent)Karl K HoltDaniel H Dickman (1 patent)Karl K HoltKarl K Holt (11 patents)Kevin J ConnollyKevin J Connolly (11 patents)George W BingleyGeorge W Bingley (4 patents)Frank J ScottFrank J Scott (9 patents)James R SchulzJames R Schulz (2 patents)Charles C WickerCharles C Wicker (1 patent)Daniel H DickmanDaniel H Dickman (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Garden Way Incorporated (4 from 30 patents)

2. Aero-stream, LLC (4 from 4 patents)

3. Other (1 from 832,812 patents)

4. Engineered Solutions, Inc. (1 from 1 patent)

5. Herker Industries, Inc. (1 from 1 patent)

6. Holt, Karl K. (0 patent)


11 patents:

1. 10995026 - Septic system remediation

2. 9126850 - Liquid aeration device

3. 7718067 - Septic system remediation method and apparatus

4. 7468135 - Portable tank wastewater treatment system and method

5. 7429320 - Wastewater treatment system

6. 7264727 - Septic system remediation method and apparatus

7. 6781070 - Indexing rotary switch

8. D353822 - Lawn and garden blower apparatus

9. D350546 - Lawn and garden chipper shredder vacuum apparatus

10. D349905 - Combined lawn and garden chipper shredder vacuum apparatus with hose

11. 5231827 - Lawn and garden chipper shredder vacuum apparatus

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as of
12/19/2025
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