Location History:
- Fairfax, CA (US) (1991 - 1992)
- Petaluma, CA (US) (1990 - 1998)
Company Filing History:
5 out of 432 
3 out of 3,840 
2 out of 854 
Years Active: 1990-1998
Title: The Innovative Mind of Karl J Fisher
Introduction
Karl J Fisher, a prominent inventor based in Petaluma, California, has made significant contributions to the field of agriculture through his innovative inventions. With a total of 10 patents to his name, Fisher has demonstrated a keen ability to address pressing agricultural challenges, particularly in plant control and herbicidal composition.
Latest Patents
Fisher's latest patents showcase his expertise in developing novel methods and compositions for plant growth regulation. One of his key inventions is the "Method of Controlling Plants by Inhibition of Farnesyl Pyrophosphate." This method involves applying an herbicidally effective amount of a compound that inhibits farnesyl pyrophosphate synthase in daffodil chromoplasts, leading to controlled growth in targeted plants.
Another notable patent is for "Herbicidal Aza Bisphosphonic Acids and Compositions Containing the Same." This invention focuses on herbicidal compositions that contain a bisphosphonic acid compound, proving effective in controlling undesirable plant growth post-emergence while showing limited activity pre-emergence. These innovative herbicidal compositions also introduce novel aza-bisphosphonic acid compounds, further advancing the field of agrochemicals.
Career Highlights
Throughout his career, Karl J Fisher has worked with well-regarded organizations such as ICI Americas, Inc. and Imperial Chemical Industries Limited. His experiences in these companies have contributed greatly to his development as an inventor, allowing him to apply his knowledge and skills in the creation of effective agricultural solutions.
Collaborations
Fisher has collaborated with notable colleagues in the industry, including Michael D Broadhurst and William G Haag. Their combined expertise and innovative thinking have fostered a creative environment, leading to the successful development of groundbreaking agricultural products that address plant control issues.
Conclusion
Karl J Fisher's work exemplifies the spirit of innovation within the agricultural sector. His patents highlight his commitment to enhancing plant control methods and addressing the complexities of agrochemistry. Through his contributions, Fisher continues to pave the way for future advancements in agricultural technology, demonstrating the crucial role of inventors in solving real-world problems.