Heinz Erwin Grellmann

Heinz Erwin Grellmann (? – ?)

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Patents by Heinz Erwin Grellmann

Page	Title	Inventors	Assignee	Filed	Granted	Links
Patent US 4598334A	Capacitive tuning screw	Heinz Erwin Grellmann • Keith E. Jones • John A. Wright	Tektronix Inc	1985-02-07	1986-07-01
Patent US 4686492A	Impedance match connection using multiple layers of bond wires	Heinz Erwin Grellmann • Leonard A. Roland	Tektronix Inc	1985-03-04	1987-08-11
Patent US 4600907A	Coplanar microstrap waveguide interconnector and method of interconnection	Heinz Erwin Grellmann • Carl W. Laakso • John J. Reagan • Leonard A. Roland	Tektronix Inc	1985-03-07	1986-07-15
Patent US 4670723A	Broad band, thin film attenuator and method for construction thereof	Leonard A. Roland • Larry Lockwood • Heinz Erwin Grellmann	Tektronix Inc	1985-03-18	1987-06-02
Patent US 4831222A	Integrated pad switch	Heinz Erwin Grellmann • Leonard A. Roland	Tektronix Inc	1985-04-29	1989-05-16
Patent US 4657322A	Microwave interconnect	Heinz Erwin Grellmann • Keith E. Jones • Carl W. Laakso • John A. Wright	Tektronix Inc	1985-10-01	1987-04-14
Patent US 4721481A	Replaceable RF connector	Heinz Erwin Grellmann • Gerald K. Hein • Brian A. Ohlemeier • Randy C. Karambelas	Tektronix Inc	1986-06-09	1988-01-26
Patent US 4695811A	High frequency coaxial switch	Heinz Erwin Grellmann • Leonard A. Roland	Tektronix Inc	1986-07-28	1987-09-22
Patent US 4789791A	Rotary drive mechanism	Heinz Erwin Grellmann	Tektronix Inc	1986-09-26	1988-12-06
Patent US 5109177A	Damped cradle for SAW device	Heinz Erwin Grellmann • Emmanuel Sang	Tektronix Inc	1989-11-28	1992-04-28