Heinz Erwin Grellmann
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Heinz Erwin Grellmann (? – ?)
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Patents by Heinz Erwin Grellmann
| Page | Office | Number | Title | Inventors | Company | Filing date | Grant date |
|---|---|---|---|---|---|---|---|
| Patent US 4598334A | 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 | 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 | 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 | 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 | US | 4831222A | Integrated pad switch | Heinz Erwin Grellmann • Leonard A. Roland | Tektronix Inc | 1985-04-29 | 1989-05-16 |
| Patent US 4657322A | 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 | 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 | US | 4695811A | High frequency coaxial switch | Heinz Erwin Grellmann • Leonard A. Roland | Tektronix Inc | 1986-07-28 | 1987-09-22 |
| Patent US 4789791A | US | 4789791A | Rotary drive mechanism | Heinz Erwin Grellmann | Tektronix Inc | 1986-09-26 | 1988-12-06 |
| Patent US 5109177A | US | 5109177A | Damped cradle for SAW device | Heinz Erwin Grellmann • Emmanuel Sang | Tektronix Inc | 1989-11-28 | 1992-04-28 |