Helmut Schroeder has been granted 8 US patents while listed as an inventor at Schreder . The first was granted in 1980 and the most recent in June 2025. Helmut Schroeder ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Helmut Schroeder in Wiesbaden, CA, DE.
Patents per Year Patents granted per year, 1980 to 2025 Bar chart with a peak of 1 patents in 1980. peak 1 1980: 1 patents 1980 1981: 1 patents 1981 1988: 1 patents 1988 2004: 1 patents 2004 2016: 1 patents 2016 2017: 1 patents 2017 2023: 1 patents 2023 2025: 1 patents 2025
Issued Patents All Time
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Showing 1–8 of 8 patents
Patent # Title Co-Inventors Date
12342441 Lamp control module consisting of base and control parts, communicating via NFC Daniel Brand 2025-06-24
11844165 Lamp control module consisting of base and control parts, communicating via NFC Daniel Brand 2023-12-12
9730297 Luminaire controllers Daniel Brand 2017-08-08
9521733 Dual-mode luminaire controllers Daniel Brand , Raoul Van Bergen 2016-12-13
6684910 Multi-layered pipe Jan Stoffelsma , Volker Koestring , Ali Guettouche 2004-02-03
4789671 14,17.beta.-ethano-14.beta.-estratrienes and estratetraenes, process for their production, and pharmaceutical preparations containing them James R. Bull , Russell I. Thomson , Henry Laurent , Rudolf Wiechert 1988-12-06
4255141 Method for marking tight dental casting — 1981-03-10
4217108 Process for the quantitative determination of the carbon of organic compounds in water Werner Melzer , Dieter Jaenicke 1980-08-12
