Hartman Engineering, Inc. Trademarks
AGRICULTURE'S ARMY
Filed: March 7, 2018
Digesters; Bio-energy and renewable energy systems
Owned by: Hartman Engineering, Inc.
Serial Number: 87824677
DIGESTER DOCTOR
Filed: March 7, 2018
Machines for waste anaerobic digestion, namely, waste digesters; Bio-energy and renewable energy systems comprising digester…
Owned by: Hartman Engineering, Inc.
Serial Number: 87824696
SUSTAINING RESOURCES NATURALLY
Filed: June 30, 2021
Engineering services in the fields of anaerobic digesters, bio-energy systems, irrigation and ditch design, stormwater pollution…
Owned by: Hartman Engineering, Inc.
Serial Number: 90803617
