Michael T. Campbell has been granted 19 US patents while listed as an inventor at Cascade Engineering . The first was granted in 1997 and the most recent in April 2023. Michael T. Campbell ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list Michael T. Campbell in Geneva, AR, CH.
Patents per Year Patents granted per year, 1997 to 2023 Bar chart with a peak of 3 patents in 1998. peak 3 1997: 1 patents 1997 1998: 3 patents 1999: 3 patents 1999 2000: 2 patents 2004: 1 patents 2004 2006: 1 patents 2013: 2 patents 2013 2016: 1 patents 2019: 1 patents 2019 2020: 2 patents 2021: 1 patents 2021 2023: 1 patents 2023
Issued Patents All Time
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Showing 1–19 of 19 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
11634091 Acoustic fiber silencer Andrew R. Skestone 2023-04-25
11143071 Hybrid acoustic silencer Andrew R. Skestone 2021-10-12
10725075 Method of evaluating change in energy consumption due to Volt VAR optimization Tess L. Williams , Kevin P. Schneider , Derek S. Lewellen 2020-07-28
D877039 Set of protective load-bearing pads for vehicles — 2020-03-03
10416206 Method of evaluating change in energy consumption due to Volt VAR optimization Tess L. Williams , Kevin P. Schneider , Derek S. Lewellen 2019-09-17
9297912 Single layer 3D tracking semiconductor detector Thilo Michel , Jan Jakubek 2016-03-29
8613180 Insulated door and method of making same Bobby Neal Strickland , John A. Wilkinson , Dale R. Childers 2013-12-24
8418427 Insulated door and method of making same Bobby Neal Strickland , John A. Wilkinson , Dale R. Childers 2013-04-16
7070848 Vehicle acoustic barrier — 2006-07-04
6808045 Secondary acoustic attenuator for vehicle — 2004-10-26
$162,503,000
6092854 Mat with integral wire harness fastener and channel — 2000-07-25
6070928 Mat with integrally molded door — 2000-06-06
5975609 Sound insulating layer with integral boot — 1999-11-02
5886305 Sound insulating layer with integral rib structure Eric Owen 1999-03-23
5868990 Injection molding parts with pinholes — 1999-02-09
5854452 System for fastening sheet materials together Andrew R. Skestone 1998-12-29
5831225 System and method for fastening insulating layers to a support structure — 1998-11-03
5824974 Insulating layer with integral grommets — 1998-10-20
5601899 Sheet with integral fastener — 1997-02-11
