Ludwig; George C.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Ludwig; George C..The latest application filed is for "pneumatic spring structure with dual output force and pressure decay compensation and method of operation".

Company Profile

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Ludwig; George C. - Marion SC
Ludwig; George C. - Florence SC
Ludwig; George C. - Owosso MI
Ludwig; George C. - Amityville NY

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Pneumatic spring structure with dual output force and pressure decay compensation and method of operation Grant 4,921,225 - Ludwig May 1, 1	1990-05-01
Pneumatic spring structure with dual output force and pressure decay compensation and method of operation Grant 4,854,554 - Ludwig August 8, 1	1989-08-08
Counterbalance apparatus with transverse pneumatic spring and bellcrank linkage Grant 4,788,747 - Ludwig December 6, 1	1988-12-06
Pneumatic counterbalance with dual force Grant 4,718,647 - Ludwig January 12, 1	1988-01-12
Pneumatic spring counterbalance having improved damping structure Grant 4,570,912 - Dodson , et al. February 18, 1	1986-02-18
Apparatus for making a pneumatic counterbalance Grant 4,451,978 - Ludwig June 5, 1	1984-06-05
Fuel flow regulator control for a diesel engine with exhaust gas driven turbocharger Grant 4,434,761 - Ludwig March 6, 1	1984-03-06
Multi-chamber temperature compensated pneumatic counterbalance Grant 4,408,751 - Dodson , et al. October 11, 1	1983-10-11
Valve, particularly crossover passage valve Grant 4,363,309 - Ludwig December 14, 1	1982-12-14
Fuel pressure regulator assembly Grant 4,310,142 - Ludwig January 12, 1	1982-01-12
Fuel pressure regulator assembly Grant 4,204,561 - Ludwig May 27, 1	1980-05-27
Fuel vapor vent valve Grant 4,142,677 - Ludwig March 6, 1	1979-03-06
Thermal Control Valve Grant 3,729,132 - Ludwig April 24, 1	1973-04-24

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