Asserter profile
BIRCHTECH CORP.
operating company5 patents now5 ever6 cases filed during tenure1 connections
PTAB exposure
5of this entity’s patents have been challenged at PTAB (5 total proceedings).
Two-hop network
Edges marked ⚖️ overlap with at least one infringement suit filed during the receiving entity’s tenure with the patent. Bold-bordered = this entity. Red = NPE; orange = shell LLC; green = defensive aggregator; blue = operating company.
flowchart LR
Nbirchtech["BIRCHTECH CORP."]
Nmidwest_energy_emissions["MIDWEST ENERGY EMISSIONS CORP."]
Nenergy_and_environmental_research_center_foundation["ENERGY AND ENVIRONMENTAL RESEARCH CENTE…"]
Nmidwest_energy_emissions -->|"2024 · Change of Name · 10343114"| Nbirchtech
Nmidwest_energy_emissions -->|"2024 · Change of Name · 10596517"| Nbirchtech
Nmidwest_energy_emissions ==>|"⚖️ 2024 · Change of Name · 10933370"| Nbirchtech
Nmidwest_energy_emissions ==>|"⚖️ 2024 · Change of Name · 10668430"| Nbirchtech
Nmidwest_energy_emissions ==>|"⚖️ 2024 · Change of Name · 10589225"| Nbirchtech
Nenergy_and_environmental_research_center_foundation -->|"2019 · Assignment · 10343114"| Nmidwest_energy_emissions
Nenergy_and_environmental_research_center_foundation -->|"2020 · Correction · 10343114"| Nmidwest_energy_emissions
Nenergy_and_environmental_research_center_foundation -->|"2019 · Assignment · 10596517"| Nmidwest_energy_emissions
Nenergy_and_environmental_research_center_foundation ==>|"⚖️ 2020 · Corrective Assignment · 10596517"| Nmidwest_energy_emissions
Nenergy_and_environmental_research_center_foundation ==>|"⚖️ 2019 · Assignment of Assignors Interest · 10933370"| Nmidwest_energy_emissions
Nenergy_and_environmental_research_center_foundation -->|"2019 · Assignment of Assignors Interest · 10668430"| Nmidwest_energy_emissions
Nenergy_and_environmental_research_center_foundation ==>|"⚖️ 2020 · Corrective Assignment · 10668430"| Nmidwest_energy_emissions
Nenergy_and_environmental_research_center_foundation ==>|"⚖️ 2017 · Assignment of Assignors Interest · 10589225"| Nmidwest_energy_emissions
Nenergy_and_environmental_research_center_foundation ==>|"⚖️ 2020 · Corrective Assignment · 10589225"| Nmidwest_energy_emissions
classDef focal fill:#fef3c7,stroke:#92400e,stroke-width:3px,color:#1c1917
classDef npe fill:#fee2e2,stroke:#be123c,stroke-width:2px,color:#1c1917
classDef shell fill:#fed7aa,stroke:#9a3412,stroke-width:2px,color:#1c1917
classDef defensive fill:#dcfce7,stroke:#15803d,stroke-width:2px,color:#1c1917
classDef operating fill:#e0f2fe,stroke:#075985,stroke-width:1px,color:#1c1917
class Nbirchtech focal
class Nmidwest_energy_emissions operating
Patents currently held (5)
- Midwest Energy Emissions Corp. et al. v. Berkshire Hathaway Energy Company et al. filed 2024-12-12
- Birchtech Corp. v. Evergy, Inc. et al. filed 2025-01-23
- Midwest Energy Emissions Corp. et al. v. MidAmerican Energy Company et al. filed 2024-12-17
- Midwest Energy Emissions Corp. et al. v. Evergy, Inc. et al. filed 2025-04-02
- Midwest Energy Emissions Corp. et al. v. Evergy Kansas Central, Inc. filed 2025-04-28
- Midwest Energy Emissions Corp. et al. v. Evergy, Inc. et al. filed 2025-02-06
Connected entities (1)
- MIDWEST ENERGY EMISSIONS CORP.operating company5 patents · ⚖️ 6
Correspondent attorneys (3)
Attorneys / firms recorded with USPTO when this entity received a patent. Recurrence is the signal — many firms do both NPE and operating-company patent work, so a single appearance doesn’t mean much.
- (no name)· BUCHANAN INGERSOLL & ROONEY1 appearance
- Matthew S. Frick· ME2C Environmental1 appearance
- PETER A. NIEVES· MCCARTER & ENGLISH1 appearance