Growing community of inventors

Paradise Valley, AZ, United States of America

Jerome H Ludwig

Average Co-Inventor Count = 2.00

ph-index = 12

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 = 418

Jerome H LudwigHoward Ohlhausen (7 patents)Jerome H LudwigAllen C Hieatt (5 patents)Jerome H LudwigMyron B Shenkiryk (4 patents)Jerome H LudwigHoward G Ohlhausen (4 patents)Jerome H LudwigTodd R Eden (2 patents)Jerome H LudwigEdward C Perry (2 patents)Jerome H LudwigDan Temple (2 patents)Jerome H LudwigEdward Fyfe (2 patents)Jerome H LudwigMartin J Plishka (1 patent)Jerome H LudwigDennis Weinhold (1 patent)Jerome H LudwigBernd Erdtmann (1 patent)Jerome H LudwigCraig Edstrand (1 patent)Jerome H LudwigKenneth A Belmore (1 patent)Jerome H LudwigDennis G Weinhold (1 patent)Jerome H LudwigDuane W Sampson (1 patent)Jerome H LudwigPatrick Eugene Lien (1 patent)Jerome H LudwigHoward G Ohlhausen (0 patent)Jerome H LudwigJerome H Ludwig (25 patents)Howard OhlhausenHoward Ohlhausen (7 patents)Allen C HieattAllen C Hieatt (5 patents)Myron B ShenkirykMyron B Shenkiryk (5 patents)Howard G OhlhausenHoward G Ohlhausen (12 patents)Todd R EdenTodd R Eden (4 patents)Edward C PerryEdward C Perry (2 patents)Dan TempleDan Temple (2 patents)Edward FyfeEdward Fyfe (2 patents)Martin J PlishkaMartin J Plishka (7 patents)Dennis WeinholdDennis Weinhold (5 patents)Bernd ErdtmannBernd Erdtmann (2 patents)Craig EdstrandCraig Edstrand (2 patents)Kenneth A BelmoreKenneth A Belmore (2 patents)Dennis G WeinholdDennis G Weinhold (1 patent)Duane W SampsonDuane W Sampson (1 patent)Patrick Eugene LienPatrick Eugene Lien (1 patent)Howard G OhlhausenHoward G Ohlhausen (0 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. H.e.r.c. Products Incorporated (11 from 14 patents)

2. Resource Development, LLC (8 from 8 patents)

3. H.e.r.c., Inc. (4 from 5 patents)

4. Other (2 from 832,912 patents)

5. Jerome H. Ludwig (0 patent)

6. Howard G. Ohlhausen (0 patent)


25 patents:

1. 9587169 - Low-toxicity, low-flammability, environmentally-safe, friction reducer fluid for hydraulic fracturing

2. 8735618 - Solvent-free organosilane quaternary ammonium compositions, method of making and use

3. 8257780 - Therapeutic composition containing an organosilane quaternary compound and hydrogen peroxide for treating skin disorders and methods of using

4. 7754004 - Thickened surfactant-free cleansing and multifunctional liquid coating compositions containing nonreactive abrasive solid particles and an organosilane quaternary compound and methods of using

5. 7704313 - Surfactant-free cleansing and multifunctional liquid coating composition containing nonreactive abrasive solid particles and an organosilane quaternary compound and methods of using

6. 7589054 - Clathrates of an organosilane quaternary ammonium compound and urea and methods of use

7. 6994890 - Cleaning and multifunctional coating composition containing an organosilane quaternary compound and hydrogen peroxide

8. 6960321 - Sterilization of fire sprinkler systems

9. 6676733 - Physiologically acceptable and non-corrosive silicone compositions, methods of making and using them to render surfaces water and soil repellent

10. 6432181 - Silicone compositions, methods of making and using VOC free, non-flammable creams, pastes and powders to render nonporous surfaces water, soil and stain repellent

11. 6345632 - Method of cleaning and passivating a fire protection system

12. 6076536 - Cleaning and passivating water distribution systems

13. 5895763 - Controlled carbonate removal from water conduit systems

14. 5885364 - Method of cleaning and maintaining potable water distribution pipe

15. 5873944 - Vacuum waste pipe cleaning

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as of
1/9/2026
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