Howard B. Marx

II Imo Delaval Incorporated: 1 patents #2 of 13Top 20%

II Imo Industries: 1 patents #19 of 58Top 35%

TD Transamerica Delaval: 1 patents #14 of 42Top 35%

📍 Chardon, OH: #131 of 361 inventorsTop 40%

🗺 Ohio: #23,384 of 73,341 inventorsTop 35%

Overall (All Time): #1,671,722 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4867199	Bi-petal l check-valve construction	—	1989-09-19
4768553	Timed shut-off mixing water valve	—	1988-09-06
4723894	Low-pressure air pump	—	1988-02-09